Mentor (1913-1930 Crowell Publishing) Magazine 203
-
Issue #203
Published May 1920 by Mentor Association.$22.00
View scansVolume 8, Issue 7 - May 15, 1920. In this issue: The Story of Chemistry. 7-in. x 10-in.; black and white; 12 pages on white paper plus card-stock gravures. Cover price $0.20.
