Notes on 19th century U.S. postal history; a special service pr epared by Stanley B. Ashbrook for a selected group of philatelists who are especially interested in U.S. postal history, postal rates, postal markings, and the unusual in U.S. domestic and foreign rate covers
Numbered photographs in pocket: no. 1-44 in v. 1; no. 45-92 in v. 2; no. 93-159 in v. 3; no. 151-208 in v. 4; no. 209-251 in v. 5; no. 252-296 in v. 6; no. 297-319 in v. 7.