Lot 506 Malta

Postage Due: Three philatelic reused covers 1925 (22 Apr) each bearing ½d black imperf postage due tied VALLETTA cds cancel, reused with single sheet pasted on the envelope addr to the same W R Gatt, Valletta, Malta. Heavy gum and age toning otherwise intr and unusual, SG multiplier for commercial cvrs is 30x (SG D1, cat £11 each).