Billhead of Joseph Rosenthal, Importers and Exporters, 190 & 192 Berks Street, Philadelphia, PennsylvaniaBillhead from Joseph Rosenthal, importers and exporters located at 190 & 192 Berks Street, Philadelphia, Pennsylvania. The billhead is dated June 18, 1902, and notes that the business also includes smelters and refiners. The billhead is signed by Joseph Rosenthal.