{"product_id":"set-of-international-textbook-company-math-books","title":"Set of 5 International Textbook Company Math Books-Algebra, Geometry, Trigonometry","description":"\u003cp\u003eSet of 5 books by the International Textbook Company of Scranton, PA.  This was a mail order degree company which provided certificates in a variety of mechanical and industrial fields. Set includes the following: Trigonometry -Slide Rule- Mechanics 145, copyright 1936; Geometrical Drawing, 163C, c.1935; Geometry \u0026amp; Trigonometry 237, c. 1932; Formulas -Cube Root- Logarithms, 235B, c. 1938; Elements of Algebra, 291,c 1933.\u003c\/p\u003e\n\u003cp\u003eThese books were designed for at-home study and are complete with instructional text, mathematical formulas, diagrams, charts and graphs to illustrate concepts.  An interesting look back at engineering education from nearly 100 years ago. \u003c\/p\u003e\n\u003cp\u003eVintage estate find, please see photos.  Overall in good condition. Pages are intact and binding is in good condition. Minor wear to cover, especially to corners, as expected for a book that is nearly 90 years old! In very good condition for age and would be great for study or display.\u003c\/p\u003e","brand":"The Forge at Pleasant Valley Farm","offers":[{"title":"Default Title","offer_id":44078969094231,"sku":null,"price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0101\/6129\/1315\/files\/rn-image_picker_lib_temp_0bb3d5ec-1e73-4aa8-81df-16dc07691141.jpg?v=1785186992","url":"https:\/\/forgeatpleasantvalley.com\/products\/set-of-international-textbook-company-math-books","provider":"The Forge at Pleasant Valley Farm","version":"1.0","type":"link"}