Penrhyn (Cook Islands)
1984 Sailing Craft and Ships, IMPERFORATE Set of 6 middle values
Singles from bottom left corner of the sheet
On white gummed paper, Mint Never Hinged
Topic: Ships
50c Star of India, 1861
60c Coonatto, 1863
72c Antiope, 1866
80c Balcutha, 1886
96c Cap Hornier, 1910
$1.20 Pamir, 1921
Scott Catalogue: #278-83, Value US$12.95 for normal stamps (2009)
Plate Proofs or Imperforate are not listed
Stanley Gibbons Catalogue: #347-54, Plate Proofs or Imperforate are not listed
I believe these to be imperforate Plate Proofs. The printer of this stamp issue Fournier S.A sold its philatelic archives of stamp artwork and proofs in 2007 through the German stamp dealer and auction house Gärtner.