Wincherster 1907 Takedown Screw Lock (?)

[NorthCoastBigBore]

When I got this rifle several years ago I was given what the last owner thought was the takedown screw lock, that he had taken out because it wasn't necessary.
However, I found that without it the takedown screw actually backs off while you're shooting it so I would like to reinstall it. I just restocked this thing and I'd love to get it in place.

But I'm pretty certain the assembly I was given is actually the wrong one. I can make something that works, but first I'll ask if anyone can confirm this is the wrong assembly? The pivot hole is nowhere close to extending far enough to go below the upper tang; nor is the catch for the teeth on the screw in the right place to engage.

Assuming it is the wrong assembly, if anyone can point me to a diagram that where I can actually see this assembly in place, it would be appreciated. I've been all over Google. YES there are lots of 1907 diagrams but the only one's I've found that show this mechanism can't be blown up enough to be seen

I'm sure there is one out there though and I'm hoping someone has a detailed diagram, or photos, saved somewhere.

 

[pmatuk]

that looks like the 1910 take down lock

 

[NorthCoastBigBore]

that looks like the 1910 take down lock

That could explain it! Thanks for that confirmation.

I JUST (just!) finished making myself one, installed and working. I modeled it after the same design anyway but sized to fit the 1907.

Roughed in before a quick polish and a quick oil quench blue:

And installed: