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In the article “Stamp Announcement 26-8: Harriet Powers Stamps,” in Postal Bulletin 22694 (1-22-26, pages 47-48), the technical details were not included.
Below are the technical details for the Harriet Powers stamps.
Issue:
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Harriet Powers Stamps
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Item Number:
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488100
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Denomination &
Type of Issue:
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First-Class Mail Forever®
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Format:
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Pane of 20 (4 designs)
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Series:
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N/A
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Issue Date & City:
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February 28, 2026, Washington, DC 20066
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Art Director:
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Derry Noyes, Washington, DC
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Designer:
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Derry Noyes, Washington, DC
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Existing Art:
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Harriet Powers
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Modeler:
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Joseph Sheeran
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Manufacturing Process:
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Offset
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Printer:
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Ashton Potter (USA) Ltd. (APU)
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Press Type:
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Muller A76
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Stamps per Pane:
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20
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Print Quantity:
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15,000,000 stamps
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Paper Type:
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Nonphosphored Type III, Block Tag
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Adhesive Type:
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Pressure-sensitive
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Colors:
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Cyan, Magenta, Yellow, Black
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Stamp Orientation:
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Vertical
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Image Area (w x h):
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1.0850 x 1.4200 in. / 27.5590 x 36.0680 mm.
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Overall Size (w x h):
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1.2250 x 1.5600 in. / 31.1150 x 39.6240 mm.
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Full Pane Size (w x h):
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9.3400 x 7.3500 in. / 237.2360 x 186.6900mm.
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Press Sheets Size (w x h):
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19.0550 x 22.3000 in. / 483.9970 x 566.4200 mm.
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Plate Size:
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120 stamps per revolution
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Plate Number:
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“P” followed by four (4) single digits
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Marginal Markings:
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Front:
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Header: Harriet Powers •1837-1910 • QUILTMAKER • Details of “Pictorial Quilt” by Harriet Powers • Plate number in bottom two corners of pane
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Back:
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© 2025 USPS • USPS logo • Two barcodes (488100) • Plate position diagram (6) • Biographical text• Proprietary text • Promotional text
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— Stamp Services,
Marketing, 2-19 -26
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