The Secret Mark on the 1¢ Franklin U.S. Bank Note
National Bank Note Company
No Secret MarkScott 134 and 145 - There is absolutely no blue in the ball left of the numeral "ONE". Even the slightest hint of a blue dash will relegate this stamp to Continental or American status, since the secret mark often is very light.
1¢ Bank Note
with Secret MarkScott 156, 182 and 206 - If there is even the slightest hint of blue in the ball left of the numeral "ONE", this stamp must be considered a Continental or American Bank Note printing.
