That is the 22 cal carbine with the GP receiver. Barrel is set up with the chamber at 12 o’clock similar to, but different from the Stevens-Pope barrels. Mallory or Brophy have photos of similar Springfield designs, but I have no proof this was made at Springfield. This might suggest Springfield reconsidered their design after fooling with the way too complicated spring loaded carrier design and used on of the GP receivers in this carbine since these receivers are cut out to facilitate access to the chamber while loading single cartridges.

I can send bigger photos by email if anyone is interested. By the way Dick, I’m still interested in a book with Amazon on the 1922 Springfield series of 22 RF but need help with getting started.