| Thumbnail |
 |
| Catalog Number |
1810a |
| Description |
National Letter Writing Week |
| Denomination |
6x15c |
| Color |
multi. |
| Variety |
Vert. Strip of 6, #1805-1810 |
| Printer |
Bureau of Printing And Engraving |
| Years |
1980 |
| Sorter |
2022 |
| Ebaylink |
http://www.ebay.com/csc/United-States/261/i.html?_armrs=1&_from=R40&_pcats=260&LH_Complete=1&LH_Sold=1&_nkw=%231810a+National&_sop=16 |
| HiRes |
 |
| Type |
Reg |
| Detlink |
https://stampsmarter.org/PNT/watermark/nowatermark.jpg |
| PicDetlink1 |
https://stampsmarter.org/PopupStampId/PB.aspx?ScottNumber=1810a |
| Date Issued |
2/25/1980 |
| Perforation |
11 |
| Watermark |
Unwatermarked |
| Num Produced |
39M |
| Paper |
Tagged |
| Printtype |
Photogravure |
| Gum Type |
Water Activated |
| Series |
|