yo earl - since you said it looks just like a govt 1911, I am assuming it has the grip safety. If so, it is most likely a Model 1927 Argentine 45.
These were either made directly by Colt and shipped to Argentina or made on Colt equipment that Colt set-up in Argentina to make that 45.
The markings on the slide should have read (something like) D.G.F.M. Elercito Argentina, referring to the Argentina Army. Yours may even be marked 11.25mm (their designation for the 45 acp). Yours should have a wide hammer spur that is knurled with a wide thumb-plate, like a target revolver or auto.
I do not recall any manufacturer of 1911s to have numbered the ejector but who knows.....
Whn you say 'different trigger', what do you mean?
Yep, they are good shooters. Most need only a new set of springs and they will go ya many thousands of rounds. Enjoy. Mikey.