The action and lockwork looks like both of my Birmingham SLE's, which I do not believe are true assisted opening actions, despite the fact that they open easily. The pin pattern on your gun is identical to the patterns on mine, which I believe is standard Holland patterned lockwork.

I suspect your locks look something like this on the inside:

[Linked Image from i.imgur.com]

Outside view with pin pattern:

[Linked Image from i.imgur.com]

Action:

[Linked Image from i.imgur.com]

Last edited by Dan S. W.; 12/23/23 01:11 PM.