Gilbert Catalog
Price in 1949: $15.95
De luxe outfit in big wooden cabinet. Has new battery powered Substage Light and Topstage Light and sensational Dri-Electric Power Pack. Professional type microscope has 3 different objective lenses — give from 120 to 450 power. Polaroid Jr. analyzer and polarizer. Set includes hand microtome, alcohol lamp, chemicals, other equipment. Illustrated manual. $15.95. Denver and west, $16.75.

Price in 1950: $15.95
Huge de luxe laboratory set, featuring a powerful Microscope which magnifies specimens 120, 200 and 450 times their actual size! 'Scope has turret mechanism for changing magnifications. With the Polaroid cop and slide with which it is equipped, this gigantic Microscope brings out colors which are really breath-taking! Rocks and drawers contain big assortment of equipment, including chemicals, slides, specimens, dissecting material, top stage light, substage light with magnifying bulb, etc. Dri-Electric Power Pack provides source for substage light to illuminate specimens — makes visibility even greater! Set is " when opened. Price, $15.95. Denver and West, $16.75.