Trade Pistol TG

[frogwalking]

I have been looking at pictures of trade pistols.  Many of them show no visible attachment method for the rear or lower portion of the trigger guard.  That is, I cannot see any screws or even pins.  The front seems to be pinned in the normal manner.  The investment cast iron guard I recently purchased has the appropriate tab on the front for the pin.  It has a sprue on the rear where it was cast.  Should this sprue be filed and ground into an additional pin tab?

[Mike Brooks]

They are held by a hook that slips under a screw head or "L" shaped nail under the triggerguard.

[frogwalking]

Thanks Mike.  It must be similar to the way some fowler butt plate tangs are attached. 

[Mike Brooks]

Thanks Mike.  It must be similar to the way some fowler butt plate tangs are attached. 

Yep, exactly.