Haiti 668 note 2 set of 12 and 3-emblem

Haiti 668 note 2 set of 12 and 3 stamps with emblem, MNH. Space Exploration, 1973. A set of 12 stamps for USA-USSR space exploration overprinted for the centenary of the UPU and 3 overprinted in silver for Apollo 17 exist but we have no evidence that they were printed with the approval of the Haitian postal authorities.