Beretta .22 Mag ID?

[jonnyc]

The recent Beretta barrel thread got me wondering.....
I recently picked up this "?" .22lr mag thinking it was for a Beretta Mod. 70, but it ain't. I did not notice until I got home that there was no mag catch hole. In addition, it is a bit too large all around to fit into my Model 70 mag well. I am pretty sure it is an aftermarket mag for a Beretta .22, but which model.
Any help?
TIA

 

[Shear_stress]

Likely for a Bernardelli 22lr (like the Model 60 shown below). They have a heel release magazine.