I understand exactly what he asked. I just want to be certain that he (and other readers) aren't mislead into thinking that a Sistema is a Colt. Like you, many people refer to them as "Sistema Colts," but they are not Colts. Colt didn't build them, Colt didn't sell them. They were built in Argentina, By an Argentinean factory and by Argentinean workers, for use by the Argentinean military or police.
The confusion arises from the rollmark on the right side, where it says (as in the photo of your pistol) "SIST. COLT CAL. 11.25mm. MOD. 1927". That's not a reference to the maker, that's the identification of the caliber. It means it's chambered for the Automatic Colt Pistol ("Sistema Colt," or "Colt System") 11.25mm (.45 caliber).