souvenir sheet issue "10 years of German emergency assistance", single franking on about 1 pfennigs postage exceeding tariff rate insured letter from "Hanover Herrenhausen 2.5.34" to Aschersleben with on the back arrival cancel, it is a commercially usage of the rare oversized souvenir sheet issue, these therefore about the upper letter margin fixed, therefore partly seal varnish on the sheet margin, photo expertize H. G. Schlegel BPP "it is a authentic commercially used souvenir sheet. ", Michel for single stamp 10.000.-