Hela submarine post, 1945, fieldpost admission stamp for troops cut off by land on the Hela Peninsula, ultramarine-blue, left marginal example, standard fieldpost cancellation 4.4.45, printing sheet position 71, full to wide margins with division lines entirely visible on three sides, perfect condition, expertised Pickenpack BPP, photo certificate Claus Petry BPP (2023) "faultless condition".