Antique Pittsburgh Metal Specialties Desk Lamp c.1920 – Patent Applied – Art Deco Gooseneck Industrial Lamp – Cast Iron Base

Step into the early days of American electric lighting with this authentic antique desk lamp manufactured by the Pittsburgh Metal Specialties Mfg. Co. in the early 20th century.


This piece beautifully blends industrial function with decorative Art Deco styling, featuring a flexible gooseneck, original metal dome shade, and an ornate cast aluminum base with shell motif detailing.
The underside retains its original maker’s mark:
“PITTSBURGH METAL SPEC. MFG. CO. – PAT. APPL. FOR”
—indicating a patented design from the era, adding both historical interest and collector appeal.
✨ Features:
✔️ Original gooseneck adjustable arm
✔️ Original metal dome shade
✔️ Ornate cast iron base with decorative scroll/shell design
✔️ Early 20th century industrial / Art Deco transitional style
✔️ Clearly stamped manufacturer’s mark

Refinished in Antique Bronze.
Rewired.
Height: 22 inches- straight up
Shade diameter: 7 inches
Base width: 6 inches
🔌 Condition:
Good antique condition with age-appropriate wear.
Small crack on bottom.
No major damage or structural issues

The Pittsburgh Metal Specialties Manufacturing Company produced functional lighting and industrial metal goods in the early 1900s. Lamps like this were commonly used in offices, workshops, and drafting environments—built to last and designed during the transition into the Art Deco era.

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