Island Leros, admission stamp rouletted, horizontal strip of three (fields 97 - 98 - 99) from margin of sheet, overprint type I - II - I on the stamps, on the margin of sheet additional III - IV - III - therefore shows the unit all fours different overprint types!, unused with original gumming with slight adhesions (on the margin of sheet Fremdpapierauflagen), roulette defects - partly scissors separation, photo expertize Petry BPP (2018) : "admission stamps with the local overprint from Leros on roulette air fieldpost admission stamps are as strip of three anyway at rare intervals to find