Agramer overprint, admission stamp rouletted, from right margin of sheet, overprint "island post" in blue black from plate I / 1, full original gumming and only because one small circular stray place as unused valued, very fresh piece this rarest type the Agramer overprints, photo expertize Petry BPP (2018) : "the blue-black Argramer overprint belongs to the rarest manifestations the second general issue, from which down to the present day hardly fifty copies have become known are. ", Michel unrealistic! One of the few bargains these stamp very fine to buy!