Mentor (1913-1930 Crowell Publishing) Magazine 209
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Published Aug 1920 by Mentor Association.$7.00
View scans$6.00
View scans- Spine split 25%.
Volume 8, Issue 13 (Whole Number 209) - August 16, 1920. "The Story of Rubber." Department of Science. 7-in. x 10-in.; black and white; 12 pages on white paper plus card-stock pictures. Cover price $0.20.
