1952 Ad Radio Corporation America Hummingbird Engineer - ORIGINAL TCE2 XGY6 This is an original 1922

This is an original 1922 color print ad for Sirri

This is an original 1923 color print ad for Ab-Scent

SM3C17 zz10000

LHJ4A11C95

1952 Ad Radio Corporation America Hummingbird Engineer - ORIGINAL TCE2 XGY6 This is an original 1922This is an original 1952 black and white print ad for the Radio Corporation of America. The ad features an image of a hummingbird and a transistor. The ad writes, "The wings of a hummingbird beat 80 times a second. Transistors, developed experimentally by RCA, oscillate electrically 300 million times a second." CONDITION This 59+ year old Item is rated Very Fine ++. Light aging in margins. No creases. No natural defects. No surface rub. No tears. No