||Printed ephemera related to American business and commerce. The core of the Doret collection, and the material that is digitized,
consists of over 150 pieces of printed advertising ephemera sent by suppliers of stationery and related products to the Philadelphia
firm John C. Clark from 1866 to 1868. Products represented include writing inks, papers, envelopes, pens, sealing wax, rubber
stamps, embossing stamps, adhesives, twine and twine holders, pens and pencils, and many other items "in the stationery line."
In addition to the material on ImPAC, the collection also includes printed business forms (such as deed transfers, bills of
lading, and insurance certificates) and various types of advertising such as trade catalogues, circulars, and broadsides.