★★ 835ei(4). 1937. 1 sts blue and orange, block of four. INVERTED FRAME ERROR. MAGNIFICENT AND EXTRAORDINARY RARE IN A BLOCK, NO MORE THAN TWO OR THREE KNOWN. Edifil 2009: +3,000 Euros
Online Auction Stamps Selection #111
Thursday, 19 October 2023 | 16:00
Lot 168
Starting price
1.200€