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 held positions at various banknote companies, such as 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.