30 x 42 in (75 x 107 cm)
ID #101462
1950 1955 250-500 Chart 26. Light charts educational foot-candle meter industrial industry information informative institutional instructional invention inverse lenses light mirrors Original 1955 periscope product reflection refraction schools science scientific size-29-5x42 slick coating on surface; dimensions may vary slightly with each by about a 1/4 inch telescope US United States vintage poster W. M. Welch Manufacturing Company
Jenkins Galerie Karl Flinker
France,1965
Comité Régional de protection de l'enfance
France, c.1940's
Le Peuple six pages trois francs
France, c.1930's
Every Fire is Sabotage Today!
USA, 1943
Smokey Bear Only You Can Prevent Forest Fires!
USA, 1947
Put the squeeze on the Japanese
U.S.A., C.1944's
