Bar-Lock Advertising Inkwell/Penholder with square vault light cover for inkwell. Embossed: "BAR-LOCK · PAT'D OCT.13-1903 · MAY 24-1904 · 2/3 ACTUAL SIZE"

Location:

• Offices and Works: 26th and Pennsylvania Avenue, Philadelphia
• New York Office: 160 Fifth Ave., New York
• Long Island City, New York

Timeline:

• ?-1911-1928-?
• In 1927/28 Sweet's they claim "30 years' experience in this line of business [sidewalk lights]"

History:

• Patents by William L. Caldwell
• Incorporated 8/17/1921: "American Bar-Lock Co., Queens, skylights, $75,000; L. B. and D. E. Mulford, C. H. Law; attorneys, Caldwell & Polhemus, 50 Church St." —New York Times

Paper:

• American Bar Lock Co., Inc. · Sweet's 1927-28 · Sidewalk Lights · Page A386

Links:

• "BAR LOCK CRUSHPROOF SIDEWALK LIGHTS" — "The Sidewalk Lights Which Eliminate Leakage, Breakage And Maintenance Costs" —St. Louis Building Arts Foundation
• "Sidewalk lights, floor lights, skylights, sidewalk doors" —Hagley Museum and Library