Objects in image: Person, Woman, Clothing, Envelope
Text visible in image: 18, YUI, NGAY, NGAY, DAU, TIEN, SA1GO, ONGHOA, 20, VUT, NGAY, HU, NGAY, 26-4-75, 26, THUVUINGAY, THU, VUI, DAU, TIEN, FUNS, OF, THE, TET, LES, REJOUISSANCES, DU, TET, 1975, NGAY, PHA'T, HANH, DAU, TIEN, -FIRST, DAY, OF, ISSUE, PREMIER, JOUR, D'EMISSION
Question: what date was the stamp issued?
Answers: 1975, 26-1-1975, 26 1 75, 26.1.75, 26.1.75, 26-1-1975, 26-1-75, 1/26/1975, 26-1-75, 1-26-1975