An industrial interest display plaque comprising five brass identification and instructional plates mounted on a shaped, dark-stained wooden backing board. The collection includes a circular maker plate for The Protector Lamp and Lighting Co. Ltd, Eccles, specifying Type SL M and Q Safety Lamps with Approval No. B/120. A large rectangular plate is embossed with 80 H.P. CONVEYOR. Further plates include a cast brass warning strip reading ISOLATE SUPPLY BEFORE REMOVING THIS COVER, an oval instructional plate regarding syphon oil maintenance with patent mark, and a small control toggle indicator plate marked for remote and local control. The plates are fixed to the board using brass dome-headed nails.
Length: 33 cm
Width: 14.5 cm.
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