South Vietnam; July 1st 1960; Military Free Frank (Michel Nr. M 1a); this stamp was issued without a nominal value for members of the South Vietnamese military (Army of the Republic of Vietnam) and handed out at no charge and at a rate of two stamps per month. It was sufficient for a standard letter at the surface rate. Additional services (i.e air mail, registered letters, express letters, etc.) had to be paid in addition at the prevailing tariff. Block of 30 stamps that shows two errors: the yellow-orange color is moved 8mm too high creating a white path in the middle of the stamp and all of the dark-brown/black color is missing.