Description
Clarke, T., A Catalog Of Philadelphia Postmarks, 18th Century To The Present, Part 1, Domestic Origin Markings, manuscript, handstamp, and machine, 1989, ca. 100 p., Part II, Additional Markings incl. BOB origin cancels (ship, foreign, air mail and railroads), received and transit backstamps, and registry postmarks, 1990, ca III, Back-of-the-Book Origin Cancels, cont'd, and Auxiliary Markings, incl. Free, Paid, Locals, Meters, Precancels, Undeliverable mail markings, Rollers, Dues, etc., etc., 1992, approx. 100 pages. 3 volumes complete, #68811