Go BackScott 4541-4544; 4544a
Scott 4541-4544; 4544a
Forever American Scientists
Die Cut 11 x 11 (SSP)
Scott 4541-4544; 4544a
Forever American Scientists
Pane Horizontal Strip of 4 #4541-4544 (4 designs)
Pane Horizontal Strip of 4 #4541-4544 (4 designs)
Scott 4544a
Forever American Scientists
Plate Block of 8 #4541-4544 (4 designs)
Plate Block of 8 #4541-4544 (4 designs)
Reference Images
Scott 4541-4544; 4544a
Forever American Scientists
Pane Horizontal Strip of 4 #4541-4544 (4 designs)
(reference or stock image)Scott 4544a
Forever American Scientists
Pane of 20
(reference or stock image)Scott 4541
Forever Melvin Calvin
(1911-1997)
[Melvin Calvin]
Pane Single
(reference or stock image)Scott 4542
Forever Asa Gray
(1810-1888)
Pane Single
(reference or stock image)Scott 4543
Forever Maria Goeppert Mayer
(1906-1972)
Pane Single
(reference or stock image)Scott 4544
Forever Severo Ochoa
(1905-1993)
[Severo Ochoa de Albornoz]
Pane Single
(reference or stock image)
Technical Notes
| Issue: | American Scientists Stamp Announcement 11-29: American Scientists Postal Bulletin 22311 — 2011 May 19 |
| Item Number: | 467300 |
| Denomination: | Forever |
| Type of Issue: | Commemorative |
| Format: | Pane of 20 (4 designs) |
| Series: | N/A |
| Issue Date: | 2011 June 16 |
| Issue City: | St. Paul MN 55164 |
| Designer: | Greg Berger Bethesda MD |
| Art Director: | Ethel Kessler Bethesda MD |
| Typographer: | Greg Berger Bethesda MD |
| Photo Illustrator: | Greg Berger Bethesda MD |
| Modeler: | Donald Woo |
| Manufacturing Process: | Offset |
| Microprint: | “USPS” |
| Engraver: | N/A |
| Printer: | Banknote Corporation of America Inc. for SSP |
| Printed at: | Browns Summit NC |
| Press Type: | Alprinta 74 |
| Stamps per Pane: | 20 |
| Print Quantity: | 30 million stamps |
| Paper Type: | Phosphor Tagged Overall |
| Adhesive Type: | Pressure-sensitive |
| Processed at: | Unique Binders Fredericksburg VA • |
| Colors: | Cyan; Magenta; Yellow; Black; Blue; Green; Purple & Dark-blue |
| Stamp Orientation: | Horizontal |
| Die Cut: | 11 x 11 (SSP) |
| Image Area (w x h): | 1.40 x .82 in 35.56 x 20.83 mm |
| Overall Size (w x h): | 1.56 x .98 in 39.62 x 24.89 mm |
| Full Pane Size (w x h): | 7.22 x 5.90 in 183.39 x 149.76 mm |
| Plate Size: | 240 stamps per revolution |
| Plate Numbers: | “S” followed by eight (8) single digits |
| Marginal Markings: | .. |
| — Front: | Header: “AMERICAN SCIENTISTS” Plate block numbers in two corners “AMERICAN SCIENTISTS” Plate block numbers in two corners |
| — Back: | © 2010 USPS • USPS logo • Plate position diagram • Barcode (467300) in lower left and upper right of pane • Verso text on back of each pane |
