Cook Islands
1979 National Wildlife & Conservation Day, IMPERFORATE $1 MNH

Single from the bottom margin of the sheet

On white gummed paper, Mint Never Hinged

Topic: Conservation

Scott Catalogue: #536, Plate Proofs or Imperforate are not listed

Stanley Gibbons Catalogue: #658, Plate Proofs or Imperforate are not listed

I believe this to be an imperforate Plate Proof. 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.