San Francisco: Joseph W. Gregory; New York: Thompson & Hitchcock, 1851. First edition. 16mo (4.88 x 2.88 inches), original gilt-printed glazed deep purple wrappers,  pages of blank ruled leaves. Lacks the original plain buff envelope cover; some trifling edge wear, else fine. Item #21030
“This book is made of the finest letter paper, and of the size of a folded letter, which, with an envelope, will not exceed the weight of a single letter, and is more convenient than paper in sheets. It will be found advantageous to write across both pages.” A lovely example of a pocket letter book intended as a compact means for Gold Rush emigrants to send letters back home. With instructions and advertisements for the services offered by Gregory’s Express and by Thompson & Hitchcock.