Additional information
| Catalog Number | 63TC6l |
|---|---|
| Condition | F |
| Paper | White wove |
| Date | 1861 |
| Color | Gray Black |
| Catalog Value | 50.00 |
63TC6l 1c Gray Black Trial Color Proof Pair on Wove Paper
$40.00
Patent No. 53,723 was granted William Wyckoff on April 3, 1866His patent called for coating the stamp paper with zinc oxide. This would form a barrier between the paper and the ink received during the printing process. Wyckoff’s concept produced a very sharp image for the finished product.
