Postal card sheet from 1931, uncut, no postal card inscription, no fee mark zn. 240. set of 24 postal cards on sheet, VERY RARE

Sheet of postcards from 1931, uncut, no inscription "postcard", no postage mark zn. 240. set of 24 postcards on sheet, size approx. 48 x 87cm, VERY RARE

good condition, edges with visible stains, trace of dampstain [stain] on three cards, loss of upper right corner, small tears in several places [on edges].