1880s Reading Speller by William Campbell with Excellent Sections on Geometric Shapes and Color math diagrams perhaps during an addition to

perhaps during an addition to the house

The reverse revealing its angle cut construction

A little paint loss dryness to the wood visible in the sky but overall very good condition

but makes sense to me

and beauty marks

1880s Reading Speller by William Campbell with Excellent Sections on Geometric Shapes and Color math diagrams perhaps during an addition toA sweet and much handled old speller by William Campbell, published by Thomas Kelly, NY, 1887. Antique school books win me for many different reasons in this case it was particularly the single color plate showing primary, secondary and tertiary colors so gorgeous! (I would be very tempted to carefully cut that one out and frame it.) But also, near it, toward the back of the book, are several excellent pages of lines, angles and geometrical shapes,