United States Postage Meter Stamp Catalog/Sub-group PD-H – Digital P.O. counter label with "PD" in town line, MOS-UNISYS

Sub-group PD-H: Digital P.O. counter label with "PD" in town line, MOS-UNISYS 3 #0018A8 Although not intended for collecting Postage Due, the MOS/UNISYS Postage Validation Imprinter system was used occasionally for that purpose in some post offices. Only one such machine is known to have been specifically labels as a Postage Due franker. Unlisted in the 2001 editionright|400px PD-H1. MOS Corporation/UNISYS (digital). 12px[RRRR] Type PO-B6.1 with town line "TAMPA PD BR.FL" . At least one of the PVI machines used in Tampa, Florida has "PD BR" (for Postage Due Branch) in the town line. Although other PO-B6 type PVI stamps have been used to collect postage due, the Tampa example is the only one known dedicated to collecting postage due and indicating so in the town line. V/F: 11px$0.00 15px$00.00 NOTE: A similar Postage Due stamp based on Type PO-B6.4 may exist but has not yet been reported.