Heinrich Köhler Auction 378 - Day 1

1854, Desmadryl 5 c. deep reddish-brown with ample to mostly large margins, tied by target to reverse of entire letter from Santiago to Valparaiso with frontside manuscript tax notation "10", cancelled by clear strike of target (obviously when the stamp on reverse of the cover was detected). A rare entire in very fine condition; it was strictly forbidden to apply stamps on the reverse of letters. Opinion Maier BPP and certificate Philatelic Foundation (2000)