| Thumbnail |
 |
| Catalog Number |
R18b |
| Description |
Proprietary |
| Denomination |
3c |
| Color |
green |
| Variety |
R3 - Part. perf. |
| Printer |
B and C |
| Years |
1862 |
| Sorter |
7901 |
| Ebaylink |
http://www.ebay.com/csc/United-States/261/i.html?_armrs=1&_from=R40&_pcats=260&LH_Complete=1&LH_Sold=1&_nkw=%23R18b+Proprietary&_sop=16 |
| HiRes |
 |
| Type |
Rev |
| Detlink |
https://stampsmarter.org/PNT/watermark/nowatermark.jpg |
| PicDetlink1 |
https://stampsmarter.org/PopupStampId/PB.aspx?ScottNumber=R18b |
| Date Issued |
|
| Perforation |
12 vert. |
| Watermark |
Unwatermarked |
| Num Produced |
|
| Paper |
old paper |
| Printtype |
Engraved |
| Gum Type |
Water Activated |
| Series |
|