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Lock-Step Piston Ring, 12" diam.

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

Set of patent "super limit" piston rings

One spare piston ring for the low pressure piston.

piston ring for the low pressure piston

"No oil metal" solid piston ring for 26 1/2" diam. cylinder. Loftus Perkins's patent A.D. 1872, No.3845

"No oil metal" solid piston ring for 26 1/2" diam. cylinder. Loftus Perkins's patent A.D. 1872

Set of patent twin piston rings, 7 1/2" diam.

Set of patent twin piston rings

"Campbell and Banks" Piston Ring with springs and packing (sectioned)

"Campbell and Banks" Piston Ring