Historical Documents Co

Manufactures parchment paper; museum

In 1926, a Philadelphia druggist named Charles Promislo accidentally spilled a beaker of chemicals on his laboratory table and left a mess to clean up in the morning. By the next day, the spilled liquids had soaked through some papers. The papers had reacted in a strange way, for each sheet was aged, wrinkled and old. Promislo, a history buff, was intrigued by his discovery and founded...