The top of the toggle has a logo of two birds (Eagles), each facing in the same direction inside of a circle.
The other side of the frame is marked “Manufactured in the U.S.A. by / Stoeger Arms Corporation / S. Hackensack New Jersey / Patents Pending”, the serial number, and “Cal..22 LR”.
On both the standard and target models, the front post sight height is fixed and can be drifted for windage adjustments.
A frustration often reported by shooters was that the pistols were "finicky" about ammunition—that they would only function well if extra high-velocity ammunition was used.
Apparently, standard velocity ammunition did not create sufficient back pressure when the pistol was fired to fully drive back the toggle and extract the spent cartridge case—especially after firing several rounds, which tended to build up residue in the chamber.