8'th classicphil Auction - Day 2

1919, 50 r. on 2 k., imperforated, orange with red INVERTED surcharge, used BATUM, exceedingly rare item in perfect preservation, illustrated in BATUM UNDER OCCUPATION 1917-21/by Grigoleit and Klempka, on page 96, XF! Schätzpreis 800€.