Schimel GP-22 Gas Pistol.
Courtesy of Leonardj.
The official designation for the CO2 powered version of the Schimel pistol was "GP-22", the "G" denoting "Gas".
Examination of the portion of the frame where the model number is situated, will reveal that the "G" prefix to the model designation is stamped into the frame, whereas, the rest of the model designation, "P-22" is raised, and formed as part of the casting process. This process may at first seem curious, but when one considers that Schimel had initially planned to produce two different models, utilizing the same frame, the rationale becomes clear. Those guns that were destined to become the CO2 versions were duly stamped with a letter "G" prefix, whilst the frames destined to become the multi-pump pneumatic version would have been stamped with an "A" prefix. Due to unknown circumstances, no AP-22 pistols were ever known to have been made.
Some Schimel pistols will also be seen with no prefix stamped into the frame, thus, only the "P-22" appears as the model designation. Pistols such as this are seen in sufficient enough numbers to suggest that at some point, the decision was made to drop the process of stamping the prefix into the frame.
The following is an excerpt taken from the 1951 Stoeger catalog.
Schimel GP-22, Luger look-alike. With thanks to John Z for these pics.