Worshipful Master is a Masonic Lodge position. The photographer wears a Masonic apron, white gloves and tuxedo with a Masonic pin on the lapel, and poses next to a certificate from the Masons on which sits his black top hat.
In print shop making posters, probably the Delaware County American office. A helper, probably Charles Haddock, is also in the picture; see AP-4099 for another picture of Haddock. Posters, probably work samples, hang on the wall.
The photographer is wearing his Knights of Templar regalia. Photographer's index includes this reference after title: (Mr. Snell) See possible explanations at AP-5316-5.
Decorated with portraits of George and Martha Washington and American flag, perhaps for Washington's Birthday. In 10/31/1917 advertisement in Chester Times, address listed in Media as 19 E. State St.
