Lot no. 412
364 / März 2017
Condition
Catalogue no.17b
Opening150 €
Sold forUnsold
10 c. bluish-violet, block of 4 (tiny separated at left), cancelled by 2 clear strikes of small cds. "MERSCH 26 AVRIL 73", very fine, sign. Schlesinger and Goebel, certificate Böttger BPP