US Stamp1973-4 Postal Service, Universal Postal Union, Scott #1489-98, #1530-7
US Stamp1973, Postal Service Employees, Scott # 1489-98, 8 cent x 10 stamps, complete set, ripples on the back. 1974, Universal Postal Union, Scott #1530-37, 10 cent x 8 stamps, complete set， small flaws on back. MNH. OG.