Los-Nr. 538

12½ c. rose, vertical block of 6, neatly cancelled with cds. "ESCH-S-L'ALZETTE 22 MARS 76"; die top pair light crease and tiny thin in the margin, otherwise fine, a scarce block, sign. Goebel and certificate Böttger BPP (2016) Provenance: Isac Seligson (Corinphila 1982)