This collection is comprised of financial records and correspondence of the Pottstown Iron Company. The financial records consist of a large number of bills paid, stock certificates and dividends; and a small number of various account, bank, tax, and insurance records. There are several volumes in the collection: stock register, 1899-1905; financial ledger, 1901-1919; and stock receipts, 1867-1875. There is also a large amount of correspondence, both outgoing and incoming.