1978 National Stamp Week 20c Kookaburra plate proof - 'imperforate chemical proof on plastic ' in a blk of 15 with marginal colour control markings which is believed to be the largest known multiple from the one pane of 50 known. Very fresh MUH. SG 694(var). ACSC 823PP(1) cat $3000+. The ACSC states that it is the only chemical proof of any modern Australian Commonwealth issue in private hands. Unique. (15). (P)
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1978 National Stamp Week 20c Kookaburra plate proof - 'imperforate chemical proof on plastic ' in a blk of 15 with marginal colour control markings which is believed to be the largest known multiple from the one pane of 50 known. Very fresh MUH. SG 694(var). ACSC 823PP(1) cat $3000+. The ACSC states that it is the only chemical proof of any modern Australian Commonwealth issue in private hands. Unique. (15). (P)

plate

Attributes read from the catalogue text · provenance below

Estimate
No estimate
Buyer's premium 22%
Closed 8 Oct 2026, 23:00 View at the house ↗
Sydney, NSW
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History
  1. Lot first indexed
    1 Nov 2026, 17:02
Provenance
Source
Status International
First seen
1 Nov 2026, 17:02
Last seen
1 Nov 2026, 17:02
Category
Stamps · classified by our model
Reference
This page is the durable record · survives the house removing its listing
Artifact hash
5b14c22f53f4 · integrity of the captured page

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