souvenir sheet issue "Aid for the city kindergarten", proof print on yellowish paper without watermark, size 114 x153 mm, unused with original gum, the souvenir sheet has on the right-hand side centered a brown spot, in the lower area are creases and a approximate 9 mm tear with a rest of hinge, the stamps are perfect mint never hinged, unsigned, very rare, photo expertize Walter Zirath BPP (2015) ". this is a very rare proof print", Michel 5.000.-