Electrical Characteristics of Overhead Lines (No.O.T4) by Stephen Butterworth
1954. 238 pages. Beige cloth with gilt lettering. No.O.T4. Inscription to front pastedown. 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.