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 medium 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
Charts of Anatomy and Physiology: Bones
Scotland, c. 1910s
Charts of Anatomy and Physiology: Muscles
Charts of Anatomy and Physiology: Organs of Digestion
Charts of Anatomy and Physiology: Heart & Arteries
Charts of Anatomy and Physiology: Veins & Lungs
Charts of Anatomy and Physiology: Organs of Sense & Voice
USA, 1909
