Hot Air Ballooning USA Postage September 18, 2023msaudCommemorative Stamps, Popular, Special Collections and Events, United States of AmericaAdd comment Issue: Hot Air Ballooning USA Postage Type: Postage Stamps &FDC Number of Stamps: 4 Stamps Denomination: 20c Each Issue Date: 1983 Issued By: United States Postal Service (USPS)