Sten jig

[Vincent]

You're right Vince. The two front ears of the TMH casing can be seen. I think that it is a multi-jig because at the rear, where the looped finger nut is, the rear head casing looks like it's being positioned ready for welding at the same time, which would make perfect sense.

So the trigger mechanism housing was put together and welded to the casing in one operation. That’s interesting. For some reason I thought was assembled first then welded to the tube.

I just noticed what looks like a pile of trigger mechanism housing side plates on the workbench below her left arm.