1.50 Fr. dark red-brown definitive with "Festung Lorient" overprint on backing, cancelled with censor handstamp "Festung Lorient 1. Mai 1945" and manuscript signature of censor officer Schmitt, printing only 1.800 stamps, expert report Lothar Herbst VP (2024) "Condition is sound. With a small printing of only 1800, these stamps are rare."