2003 Index to the Pennsylvania Postal Historian : 1997-2003, Thirtieth Anniversary Edition
| Clarke, Tom (Thomas F.) | Pennsylvania Postal Historian -- Indexes, United States -- Pennsylvania, Postal history, Postal markings, Covers, Post offices, Postal Service, Pre-adhesive Covers, Fee Paid Mail, Transportation of mail, Periodicals, Pennsylvania Postal History Society. | 2003 | USA : [Pennsylvania? |