Ran across a FN made Columbian Mauser carbine in .30-06.

Trying to figure out what exactly it is. Bolt is bent, has the full spelling of FN on left side of receiver, SHORT barrel, and is pretty much all there with a rough finish. It's "led a life" from what it looks like but seems to lock up solid.

How do I identify if it's a converted 7mm or a M1950 carbine made new in .30-06?

Safe to shoot modern ammo through it?

What's a fair price if it's a real M1950? They are asking $375.

Converted 7mm? Are these safe to shoot modern commercial .30-06 in?

Anybody know anything about the appropriate markings to identify it's actual model?
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