| Scott# 2129 | Plate # 1 (Block Tagging) |
| Scott# 2129a | Plate # 1, 2 (Untagged - Precanceled in Red with Nonprofit Org.) |
| Series | Transportation |
| Issue Date & City | January 24, 1987, Tucson, Arizona |
| Nationwide Sale | January 25, 1987 |
| Designer | William H. Bond, Arlington, Virginia |
| Art Director | Howard Paine (CSAC) |
| Typographer | Bradbury Thompson (CSAC) |
| Modeler | Esther Porter (BEP) |
| Engravers | Edward P. Archer, vignette, Michael J. Ryan, lettering (Both BEP) |
| To Press / Initial Quantity | November 1986 / #2129 - 17,600,000, #2129a - 792,048,000 |
| Coil Sizes | (#2129) 500, (#2129a) 500, 3000 |
| Printer | Bureau of Engraving and Printing, Washington, DC |
| Press | B Press (701) |
| Process | Intaglio |
| Where Printed | Bureau of Engraving and Printing, Washington, DC |
| Where Processed | Bureau of Engraving and Printing, Washington, DC |
| Plate Size & Interval | 936 (18 x 52) stamps per revolution / plate # every 52 stamps |
| Paper & Gum | Water-Activated Type I, III |
| Tagging Type | #2129 - Block, #2129a - Untagged |
| Perf Gauge | 9.8 Vertically |
| Color | Dark Gray |
| Overall Size | apx. 0.87 x 0.96 in. / 22.1 x 24.4 mm |
| Earliest Known Use | January 24, 1987 |
| Note: | The Flexographic precancel mat was installed in the same position usually used for tagging. |
| Precancel gaps, consisting of a horizontal misalignment of the precancel text, exist at 13 stamp intervals. | |
| Precancel gaps exist at 1L, 4L, 5L, 6L |
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