TY  - BOOK
AU  - Langford, Frederick
TI  - Standard encyclopedia of Doremus machine cancels
PY  - 1968///
CY  - Pasadena, CA
PB  - F. Langford
KW  - United States | Machine Cancels | Postal Markings | Post Office Equipment | Catalogs and Price Lists | Postal History | Doremus Canceling Machine Company | Doremus, Willard D
ER  -