Mentor (1913-1930 Crowell Publishing) Magazine 122

Add to cart VG+ 4.5 $26.00 View scans	Add to cart Fair $8.00 View scans Spine split 90%. Water damage: Moderate.	Add to cart Fair $8.00 View scans	Add to cart Fair $8.00 View scans Spine split 5%. Incomplete, See Notes. Staple rust: Slight.
Add to cart Fair $8.00 View scans Spine split 90%. Staple rust: Slight.	Add to cart Poor $4.00 View scans Spine split 20%. Staple rust: Slight.

Volume 4, Issue 22 (Serial Number 122) - January 1, 1917. "Keeping Time." Department of Science. 7-in. x 10-in.; black and white; 12 pages on white paper plus card-stock covers, with 6 loose gravures. Cover price $0.15.