Correspondence, accounts, bills, order books, cashbooks, appointment books, price lists, photography formulas, charts, advertisements, technical information, and other papers. Persons represented include photographers (and partners) Nathan E. Nash, Lucius Thompson, W.T. Dyer, Addison Scholfield, and George E. Tingley, and E.A. Scholfield's wife, Leonora B. (Ashbey) Scholfield.