https://www.nationalphilateliccentre.com.au/research/caring-for-your-stamps/caring-for-your-stamps/2023-08-28T11:47:27+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-9d-kangaroo-a-history-of-the-plates/2023-07-26T08:43:32+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/a-flaw-on-the-6d-violet-blue-roo-die-2b-on-third-watermark-at-2l9/2022-11-07T19:52:32+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-9d-kangaroo-a-history-of-the-plates-2/2022-11-07T19:52:10+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/kangaroo-wa-thick-coast-revisited/2023-11-21T10:53:08+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/when-did-the-kangaroo-really-open-its-mouth/2023-11-21T10:53:15+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-mystery-of-the-wandering-ink-flaw/2022-11-07T19:53:20+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-mystery-of-the-missing-link/2023-11-21T10:53:19+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/are-they-retouches-or-not/2022-11-07T15:06:58+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/mint-booklet-found/2023-11-21T10:53:24+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/recut-shading-between-and-around-5c/2023-11-21T10:53:31+11:00https://www.nationalphilateliccentre.com.au/uncategorized/new-double-perforation-revealed-2d-sturt/2022-11-30T00:04:41+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/plating-the-15c-yellow-flaw/2023-01-15T22:39:57+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/untitled-copy/2023-01-15T22:45:28+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/recent-auction-offering-5c-hooded-dotterel/2024-05-08T07:51:16+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/kangaroo-coil-stamps/2023-01-15T22:53:09+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/the-1923-1924-colour-changes/2023-01-15T22:54:56+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/a-vertical-pair/2023-01-15T23:02:59+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/10sh-roo/2023-01-15T23:04:45+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/australia-19131940-kangaroo-2-white-flaw/2023-01-15T23:06:25+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/19351944-2-ca-wmk-bw-acsc-402l-cut-throat-kangaroo-retouched-position-1r25/2023-11-21T10:49:42+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/2013-ms-dinosaur-sheetlet-imperforate/2023-01-15T23:44:16+11:00https://www.nationalphilateliccentre.com.au/research/kgvi/1940-cofa-perf-1-small-lyrebird-moving-void/2023-01-15T23:47:47+11:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/1959-christmas-issue-flaw-plated-at-row-6-stamp-4/2023-01-23T10:45:59+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/1913-1-2d-kangaroo-the-rare-variety-flaw-austbalia-has-now-been-plated-2l19/2023-01-23T10:48:43+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/new-decimal-error-discovery-198182-acsc-902-24c/2023-01-23T10:54:24+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/10-kangaroo-ca-wmk-specimen-d-bw-50exe-dark-grey-and-aniline-pink/2023-01-23T11:06:59+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/1978-famous-aviators-miniature-sheet-forgery/2023-01-23T11:08:56+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/1966-4c-christmas-bw-471-partly-missing-olive/2023-01-23T11:10:11+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-9-states-of-the-5-ewe-face-kangaroo-l10/2023-11-21T10:44:16+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/r16-of-the-1-blue-and-brown-kangaroo/2023-01-23T11:19:15+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/1913-5d-kangaroo-bw-2017-acsc-162f-position-2r42-june-2020/2024-05-08T07:51:00+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/white-flaw-above-second-s-of-shillings-on-2-third-watermark-brown-and-maroon-kangaroos-philip-adams-and-richard-guy-acccf/2023-09-04T10:21:02+10:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/some-rare-missing-colours-from-norfolk-island/2023-01-23T11:28:01+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/1915-3rd-wmk-2d-roo-with-broken-right-frame/2023-01-23T11:33:03+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/new-flaws-on-the-1975-18c-helichrysum-thomsonii-dec-2020/2023-01-23T11:41:01+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-complex-story-of-vignette-l39/2023-11-21T10:36:26+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-complex-story-of-vignette-l39-addendum-old/2023-11-21T10:25:44+11:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/1965-christmas-bw-acsc-435ca-with-varieties-gold-omitted-and-more/2023-01-23T11:55:05+11:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/1965-christmas-bw-acsc-435-with-varieties-gold-omitted-continued-part-2/2023-01-23T11:57:13+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/kangaroos-ears-missing-position-l44-2021-bw-acsc-44vn-july-2021/2026-05-04T23:00:53+10:00https://www.nationalphilateliccentre.com.au/research/kgvi/1938-nsw-sesquicentenary-issue-august-2021/2023-01-23T12:34:33+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/fallen-p-in-specimen-type-c-plated-as-l17/2023-01-23T12:46:28+11:00https://www.nationalphilateliccentre.com.au/research/kgvi/additional-flaws-found-on-two-listed-1d-green-aif-of-1940/2023-01-23T12:55:48+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/1913-die1-1d-red-kangaroo-variety-austbalia/2023-01-23T13:00:43+11:00https://www.nationalphilateliccentre.com.au/research/miscellaneous-articles/john-ash-article-1928-melbourne-exhibition/2023-01-23T13:05:40+11:00https://www.nationalphilateliccentre.com.au/research/miscellaneous-articles/john-ash-retirement-1940/2023-07-26T08:42:04+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-challenge-in-plating-the-retouch-on-1913-5d-kangaroo-1l49/2023-07-26T08:42:10+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/white-flaw-of-arnhem-land-by-david-wood/2023-07-26T08:42:17+10:00https://www.nationalphilateliccentre.com.au/research/miscellaneous-articles/introducing-w-c-g-mccracken/2023-07-26T08:42:24+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/2-brown-kangaroo-1st-2nd-and-3rd-wmk/2023-07-26T08:43:37+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/four-minor-flaws-plated-for-3d-kangaroo-die-iib/2023-07-26T08:43:17+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/6d-kangaroo-substituted-monogram/2023-07-26T08:43:10+10:00https://www.nationalphilateliccentre.com.au/research/kgvi/coat-of-arms-specimen-study/2023-07-26T08:43:05+10:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/double-error-for-1986-33c-banksia/2023-07-26T08:50:27+10:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/1965-christmas-bw-acsc-435ca-with-varieties-gold-omitted-and-more-continued-part-3/2023-08-21T21:36:07+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/two-prominent-flaws-on-6d-kangaroo-plated-at-1r55-and-1r56/2023-08-21T22:54:31+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/new-flaws-for-the-3d-olive-kangaroo-die-1/2023-10-25T16:46:32+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/a-non-queensland-postmark-found-on-a-9d-roo-2nd-inv-wmk/2023-10-25T16:57:54+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/new-flaws-for-the-3d-kangaroo/2023-10-25T16:58:34+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/3d-kangaroo-die-iib-unlocated-constant-variety-found-in-block-of-6/2023-10-25T16:59:23+11:00https://www.nationalphilateliccentre.com.au/research/kgvi/new-discovery-on-b-c-o-f-overprints/2023-11-21T12:28:22+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-six-states-of-the-chopped-neck-kangaroo/2023-12-04T01:16:11+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/coil-join-for-the-5d-kangaroo-uncovered-after-110-years/2024-05-08T07:49:06+10:00https://www.nationalphilateliccentre.com.au/uncategorized/1924-kgv-11-2d-die-1-no-wmk-block-6-with-post-office-repairs/2024-05-08T07:48:37+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-three-states-of-thepo-retouch-on-9d-roo-die2-acsc-262k/2024-05-08T07:48:49+10:00https://www.nationalphilateliccentre.com.au/uncategorized/comparison-of-the-three-plate-varieties-with-top-of-the-crown-missing-by-john-bozic/2024-05-08T07:48:43+10:00https://www.nationalphilateliccentre.com.au/research/miscellaneous-articles/an-unresolved-franking-rate-on-a-cover-sent-from-sydney-to-san-francisco/2024-04-13T23:28:41+10:00https://www.nationalphilateliccentre.com.au/research/auction-results/auction-results-by-john-bozic/2024-05-08T07:50:03+10:00https://www.nationalphilateliccentre.com.au/uncategorized/towards-100-new-research-into-the-introduction-of-the-franking-machine-to-australia-richard-peck/2024-10-15T14:13:19+11:00https://www.nationalphilateliccentre.com.au/uncategorized/4d-kangaroo-varieties-that-are-un-positioned/2024-06-02T22:44:47+10:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/new-1975-radio-astronomy-flaws-by-richard-guy/2024-06-05T21:03:06+10:00https://www.nationalphilateliccentre.com.au/research/auction-results/template-to-copy-do-not-change/2024-12-08T21:51:33+11:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/discussion-on-the-1954-issue-on-red-cross-variety/2026-05-04T22:03:50+10:00https://www.nationalphilateliccentre.com.au/research/gold-medal-exhibitions/kgv-large-gold-medal-exhibit/2025-02-05T22:19:06+11:00https://www.nationalphilateliccentre.com.au/research/marcophily-frama/what-can-go-wrong-with-franking-machines-postage-meters/2024-10-15T14:11:23+11:00https://www.nationalphilateliccentre.com.au/research/gold-medal-exhibitions/the-kgv-large-gold-medal-winning-collection/2026-05-04T21:59:39+10:00https://www.nationalphilateliccentre.com.au/research/kangaroo/the-sleeping-giant-roo-bw-2734z/2024-12-08T22:15:39+11:00https://www.nationalphilateliccentre.com.au/research/gold-medal-exhibitions/the-kgv-large-gold-medal-winning-collection-part-three/2025-02-03T21:37:24+11:00https://www.nationalphilateliccentre.com.au/research/marcophily-frama/a-study-of-the-frank-dies-used-on-early-neopost-franking-machines/2025-02-05T22:35:44+11:00https://www.nationalphilateliccentre.com.au/research/qe2-decimals/change-this-draft-new-post-8-3/2025-09-25T20:38:56+10:00https://www.nationalphilateliccentre.com.au/research/qe2-pre-decimals/change-this-draft-new-post-8-4/2025-10-12T22:38:30+11:00https://www.nationalphilateliccentre.com.au/research/kangaroo/change-this-draft-new-post-8-2-4/2025-11-21T00:20:06+11:00https://www.nationalphilateliccentre.com.au/research/gold-medal-exhibitions/change-this-draft-new-post-8-2-3/2026-05-04T21:39:01+10:00https://www.nationalphilateliccentre.com.au/research/marcophily-frama/change-this-draft-new-post-8-2-3-2-3/2026-07-23T23:26:04+10:00