The Calculus of Extension by Henry George Forder
1941. No Edition Stated. 490 pages. No dust jacket. Blue cloth with gilt lettering. Inscription to front pastedown. Front endpaper has been removed. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Boards are a little rub worn, slight shelf wear to corners, spine and edges. Corners are a little bumped. Spine ends are mildly crushed. Light tanning to spine and edges. Book has a forward lean.