Paperback. Presumed first edition (no additional printings listed) ; ca 1938 (I-38 code) . Spiral bound, flexible cardboard covers, 5 3/4 x 7 1/2 inches, index, 62 pp, illustrated with black and white photographs. Paperback, very good. Rubbed along edges, approximately 1 inch of front cover pulling away from spral, lower corner there creased, paper lightly age yellowed, otherwise tight, clean, paper crisp, unmarked. Photography; cameras; antiques; developing; darkroom.