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
Star Trek 1976
USA, 1976
Semaine de l'Agriculture 1961
France, 1961
Semaine de l'Agriculture 1960
France, 1960
Lance Hidy Electric Design
USA, 1990
Una -- Ressuscite? Monos -- Oui
France, c. 1970s (?)
IV Foire Internationale de la Chimie
Yugoslavia, 1963
