1861, 5¢ black, trial color large die proof on India paper. Die sunk on original card (74x77mm), showing full die sink, with "442" die number and small "National Bank Note Co. N.Y." imprint below, couple tiny tone spots on card, Very Fine, very rare with only a few known.
Scott No. 67TC1ae; $2,500. US$0 (Image)

Scott $2,500

1861, 10¢ green, large die proof on India paper. (113 x 128mm), small "National Bank Note Co. N.Y." imprint below, bright, fresh color, Extremely Fine and choice.
Scott No. 68P1; $650. US$0 (Image)

Scott $650

Sale No: 117
Lot No:3164
Symbol:PCat No:68P3

1861, 10¢ green, plate proof on India paper. On original card, block of 4, huge margins, intense color, Extremely Fine and choice.
Scott No. 68P3; $300. US$0 (Image)

Scott $300