20 C. blue with interesting defective or badly placed perforation, indication of value "20 C POSTES 20 C" above in lieu of at the bottom. The stamp comes probably from lower margin and was so from the sheet separated, that the perforation on all sides complete and the actual to the stamp belonging indication of value by means of scissors separation likewise available is and at the bottom appends. As a single franking on folded letter from "LE HAVRE 20 AVRIL 67" to Paris, minimal patina traces