Salvaged Aluminium Explosion-Proof 4 foot Strip Light

Never seen these before, great looking salvaged 4 foot tube light 

Reclaimed marine strip light in a heavy cast-aluminium explosion-proof housing, polished to a bright metal finish.
It has an internal LED strip behind four frosted glass panels in a riveted frame, with cast end housings, a brass cable gland and embossed  logo end covers.

Sold as a light body only — not rewired or PAT tested.

Dimensions: Length approx. 90cm, diameter approx. 8cm - weight 8kg. 
Details: Cast aluminium housing, polished finish, internal LED, four frosted glass panels, riveted frame, brass gland, embossed  logo, original Japanese ?character data plate
Condition: Salvaged and polished, with light signs of age and use