40k 1937 Soviet Architects Issue; #603b Vertical Strip of 3, Imperforate; No Gum. Bottom stamp has a small tear in left’40’, and some wrinkles at right side… See scans for the exact item in this lot. Great lot for a Russia or WW collector. Please consider adding me to your’favorite sellers’ list if you are interested in this type of material, as I will be offering more nice worldwide stamp groups on a regular basis. Powered by SixBit’s eCommerce Solution.