Niue

1981 Flower definitives, IMPERFORATE Short set of 24 MNH

24 low and medium values, excludes 6 large format dollar values

2c – 80c se-tenant in blocks of 8 from top left or top right of sheet

On white gummed paper, Mint Never Hinged

Stanley Gibbons Catalogue: #381-404

Plate Proofs or Imperforate are not listed

Scott Catalogue: #317-328

Plate Proofs or Imperforate are not listed

I believe these to be 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.