A 20 mark 1918 voucher issued by the Magistrate of the City of Gdansk, the only denomination of vouchers of this issue that does not have a dry stamp, instead there is an overprint of the issuer's control stamp in red.
A rare variant of this denomination with the cashier's stamp "UNGULTIG" in black on the obverse, which was nailed at cash registers when the voucher was withdrawn from circulation; the vast majority appear on this denomination on the reverse, in dark blue.
An attractive piece, a rare voucher, confirmed by the high grading note of PMG
Literature : Miłczak GN10
