| Thumbnail |
 |
| Catalog Number |
4123a |
| Description |
International Polar Year 2007-2008: Aurora borealis |
| Denomination |
84c |
| Color |
Multicolored |
| Variety |
2007 US Commemorative Issue |
| Printer |
Ashton Potter (USA) Ltd. |
| Years |
2007 |
| Sorter |
5477 |
| Ebaylink |
http://www.ebay.com/csc/United-States/261/i.html?_armrs=1&_from=R40&_pcats=260&LH_Complete=1&LH_Sold=1&_nkw=%234123a+International&_sop=16 |
| HiRes |
 |
| Type |
Reg |
| Detlink |
https://stampsmarter.org/PNT/watermark/nowatermark.jpg |
| PicDetlink1 |
https://stampsmarter.org/PopupStampId/PB.aspx?ScottNumber=4123a |
| Date Issued |
2/21/2007 |
| Perforation |
SDC 10¾ |
| Watermark |
Unwatermarked |
| Num Produced |
4 billion stamps |
| Paper |
Nonphosphored |
| Printtype |
APU Offset |
| Gum Type |
Self Adhesive |
| Series |
|