Schoff was employed by a number of bank note companies, including: Toppan, Carpenter & Company, the John A. Lowell Company of Boston, the Continental Bank Note Company, the National Bank Note Company, and the American Bank Note Company of New York.
Schoff worked for several banknote manufacturers, including: Toppan, Carpenter & Company, John A. Lowell Company of Boston, Continental Bank Note Company, National Bank Note Company, and American Bank Note Company of New York.