1517 POLAND - POSTAGE DUE STAMPS Auction #2031: WORLDWIDE + ARGENTINA: General July auction Lot / Used Cat.#: F.VF Lot of stamps with varied "PORTO" overprints, very interesting! Starting Price: US$ 25 Current Price: US$ 25 Bid US$ 25 or more Closing: 2020-07-30 22:10:00