I'll bet there isn't a more comprehensive group of photographs of these rifles in existence outside of this thread. LOL

I don't recall seeing the underside of one anywhere, so here it is!







(original, pre-conversion, rear sling position)
I had seen the "24" before, but hadn't noticed the circular stamping to the right until now




And the underside of the muzzle end - the button for opening the "storage tube" can be clearly seen