Doc Hoy: check
www.1960nma.org. That is the Centaure website. If you have not done so please, download the questionaire from the website and submit the specific data of your pistol to be included in the Centaure survey.
These pistols were produced between 1959 and 1973, some 16000 only made in 4 models. The lowest S/N known is #38. Your #952 was made ca.1961.
Bootsie aka Long Johns Wolf