TY  - BOOK
AU  - Payne, Robert
AU  - Billings, Bart
TI  - Introduction to the Machine Cancel Society's Database of Machine Cancels
PY  - 1998///
CY  - Ashland? MA
PB  - Machine Cancel Society
KW  - United States | Machine Cancels | 19th Century | 20th Century | Databases | Post Office Equipment | Affixing Machines | Postal Markings | Postal History | Collecting -- Identification | United States -- California -- San Diego | Supreme Database of Machine Cancels
ER  -