8'th classicphil Auction - Day 2

1920, 50 r. on 4 k., brown lilac, with blue INVERTED opt., LPOG, a scarce variety in perfect preservation, illustrated in BATUM UNDER OCCUPATION 1917-21/by Grigoleit and Klempka, on page 104, signed Romeko, XF! Schätzpreis 1.400€.