Vintage Industrial Explosion-Proof Bulkhead Cage Light

This is a vintage industrial-grade bulkhead or vapor-proof light fixture, designed for use in hazardous or high-moisture environments. The item features a thick, cylindrical clear glass globe housed within a heavy-duty cast metal protective cage, likely made of iron or aluminum alloy with a weathered patina. The metal cage consists of vertical ribs and horizontal bands joined by rivets or welds to prevent the glass from shattering upon impact. The glass globe bears visible white stenciled or acid-etched markings, including 'KILLARK' and 'V-200-S', indicating a high-quality manufacturing origin from the mid-20th century. Physically, the piece measures approximately 8 to 10 inches in height. The top mounting flange is coated in a thick, white paint that shows signs of significant wear, chipping, and age. The cast metal cage exhibits surface oxidation and rust, providing a desirable industrial aesthetic but suggesting exposure to the elements. Inside the globe, a standard frosted incandescent bulb is visible. The construction is robust and utilitarian, characteristic of mid-century industrial hardware used in maritime, factory, or mining settings. The overall condition is fair to good, with the integrity of the glass remains intact while the metal components show heavy authentic usage wear.

Based on my visual examination of this vintage industrial bulkhead fixture, I have identified it as an authentic Killark Electric Manufacturing Co. 'V-200-S' vapor-proof light. The piece exhibits the heavy-duty cast construction and stethoscopic glass thickness consistent with mid-century hazardous-location hardware. The condition is fair; while the integrity of the globe is excellent, the mounting flange shows significant paint loss and the cage displays surface oxidation consistent with a maritime or high-moisture industrial environment. Market demand for 'industrial chic' remains steady, particularly for branded pieces like Killark or Crouse-Hinds. Comparables for unrestored units typically fall in the $125-$175 range, though the presence of the original stenciled glass globe—which is often broken or replaced—adds a premium, pushing the value toward the higher end of the estimate. Rarity is moderate, as these were mass-produced, but find-quality examples with intact globes are increasingly entering private collections rather than salvage yards. Limitations of this digital appraisal: I cannot verify the integrity of the internal socket threading or the presence of the original rubber gasket, both of which are critical for electrical safety and outdoor functionality. A physical inspection would be required to check for hairline fractures in the cast metal under the paint and to confirm the metallurgy (iron vs. aluminum). For full authentication, I would recommend checking for additional casting marks on the interior of the flange and verifying the conductivity of the wiring to ensure it has not degraded significantly. This valuation assumes the fixture is structurally sound and capable of being rewired for modern residential use.