Among the items acquired in 1996 by Jay Snider, the collector of printed Americana, are 278 partially printed, early Pennsylvania mortgage forms. The royal folio forms are bound together, as issued, in full calf stamped with tools thought to have belond to William Davies, a bookbinder who flourished in Philadelphia from 1722 to 1740. The mortgage forms include printed preambles identifying Pennsylvania's General Loan Office trustees as the mortgagees,...