John,
Stanton locks;interior faces are seen on plate 49 in the book Game Guns and rifles ,by Richard Akehurst, The illustration show examples of Stanton rebounding locks, patent 367 of 1867 and the improved version patent 3774 of 1869.
Similar illustration s are seen in Vol;1 page 202 of The British Shotgun Vol 1 by Baker and Crudgington.

Last edited by Roy Hebbes; 09/06/18 11:15 AM.

Roy Hebbes