Two "no oil metal" split piston rings for 8" diam.

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One no oil metal' split piston rings for 8' diam. cylinder. Loftus Perkins's patent A.D. 1872 No.3845'
Science Museum Group
© The Board of Trustees of the Science Museum

One "no oil metal" split piston ring for 8" diam. cylinder. Loftus Perkins's patent A.D. 1872 No.3845


Motive Power
Object Number:
Baker Perkins Limited

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