![](https://coimages.sciencemuseumgroup.org.uk/27/953/medium_thumbnail_1919_0335__0001_.jpg)
Two Clupet Piston Rings
![One Clupet Piston Rings, patented by B. Clews and H.M](https://coimages.sciencemuseumgroup.org.uk/302/711/medium_smg00020997.jpg)
One Clupet Piston Rings, patented by B. Clews and H.M. Peterson in 1919, viz: 1 for 5 1/2" diam. cyl. and 1 for 2 1/2" diam. cyl.
One Clupet Piston Rings, patented by B. Clews and H.M. Peterson in 1919, viz: 1 for 5 1/2" diam. cyl. and 1 for 2 1/2" diam. cyl.