Hardback. SIGNED. The author worked for the United States Post office Department, New England Division as consulting expert, resulting in his successful ferreting out of hundreds of forgeries and black-hand cases, some of which are chronicled in this book. Chapter headings include : The Dollar Mark; The Maroon Blotting Pad; Three Links in a Chain; The Pencil Dot; The Sixteeenth Dot; The Literary Fly; A Tale of Two Lenses; A Corner in Glue; Where the Lines Crossed; The Cancelled Check; The Autograph Finder; A Gilt-Edged Clew; A Matter of Spacing; That "Ten Dollar" Secretary; A Mere Cipher; A Simple ","; Just a Smudge of Ink; A Cigarette Stub; Devious By-Ways. With Portrait Frontis. 139pp. 12mo. h/back. PRESENTATION COPY SIGNED BY THE AUTHOR. Fr. hinge just beginning to show, patchily faded gilt lettering to fr. cover and sp. Vg.