Page 30 - Demo

Armstrong and LEM on the MoonC76%u2014September 9, 1969Issued less that two months after the Apollo 11 mission, and depicting the first footstep on the moon by Neil Armstrong, this oversized stamp celebrated %u201cmoon mail.%u201d Its First Day Cover was the most popular ever. The Moon landing effectively won the Space Race for the U.S.Hawaiian god KiiC84%u2014May 3, 1972Marking the 100th anniversary of the National Park System, featuring the City of Refuge, a National Historic Park in Honolulu, the site of 3 temple platforms.Vacuum TubesC86%u2014July 10, 1973Honoring Lee de Forest, whose most famous invention was the Audion vacuum tube, %u201ca device for amplifying feeble electric currents.%u201d This resulted in the first radio broadcast in 1907, and earned him the name %u201cFather of the Radio.%u201dNational Parks Anniv.1972Moon Landing1969Progress in Electronics1973