I remember them being in the Shooter's Bibles of the early '60s. What I recollect they were wall hangers with Stoeger's descriptor being that they were for places like the Belgian Congo where the natives weren't allowed to own "real" guns, as already mentioned. Going from memory they were cheap, around $16.50 when a Winchester 94, Marlin 336 or Ruger Blackhawk were listed at $87.50 msrp. I'm not sure if I would want to shoot one without having my life insurance paid up!
-Kees-