Applicable to all Banks in the United States.
The Steel-plate Illustrations contain standard specimens of all the
different styles of engraving of the notes of all the Banks in the United
States--six distinct kinds; four kinds of Engine-work, which is impossible
to be imitated by hand. In counterfeits it is attempted, and this book
explains the principle in such a manner as to enable any person to detect
_at sight_, infallibly, any counterfeit or altered note.