I have been watching for one of these for years, and found one Monday at a small town Arkansas pawn shop. I believe this is an early gun, possibly one of the Jovino conversions.
Astra 44 Magnum, is not marked TERMINATOR anywhere. This one has a frame profile more like a S&W than others I've seen.
It does have Pachmayr compact grips, barrel length is just a hair over 2 3/4 inches.
Five screw type frame, there is a screw underneath in front of the triggerguard.
Pinned barrel, and front sight base
Recessed chambers
No bluing on the crown, this is what makes me think it could have been a cut down Jovino gun.
The rear sight is broken, I'm going to have to find a replacement, or more likely have this one welded up. Lockup is very tight, when the hammer is cocked this is no movement of the cylinder at all. I'm anxious to shoot it.