National Liberation Front, 85th Birthday of Ho Chi Minh (II), October 6th, 1975, Michel Nr. NLF 59-60; Two stamps in the nominals of 30xu and 60xu (in South Vietnamese currency) were released in perforation 11.0. A similar set was issued in North Vietnamese currency and nominals of 12xu and 60xu and different country name. (Michel Nr. 811-812).
Here is the cancelled to order set.
Registration Nr. 200018