Approximate Dimensions:
McGuffey's Primer: 7 1/4" long x 5" wide x 1/4" thick
Sunshine: 8" long x 5 1/4" wide 1/4" thick
The building of Jalna: 8" long x 5 1/2" wide x 3/4" thick
Business Arithmetic: 8" long x 5 3/4" wide 3/4" thick