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.

Additional information

Catalog Number

63TC6l

Condition

F

Paper

White wove

Date

1861

Color

Gray Black

Catalog Value

50.00