Hi AKfan.....welcome to TFF.
What you have is a pre-series 70 Colt Commander (made in 1968).
And....it may be "just how it came", but I seriously doubt that it's "just how it came from the Colt factory
Colt Commanders did come in 9mm....no problem there. But they came in all blue, with plastic grips, an arched mainspring housing, standard grip safety, round hammer, and a standard fixed rear sight (not Wilson).
Sounds like yours has been aftermarket "customized".....but....no worries. Those all sound like improvements on the "as bought" model. I have a Series 70 Lightweight Commander in .45 ACP that I bought new (many, many years ago), that I've done pretty much the same thing to. MMC Combat adjustable sights, long tang grip safety, Pachmayr wraparound grips and flat mainspring housing, adjustable trigger, polished feedramp, and enlarged ejection port. It's my daily carry gun, and has been for the last 30 years or so.
In any case.....if your Colt is a good shooter, and in decent condition.....and you got it for $200
.....jump for joy. You stole that gun!!!!
Decent "shooter" lightweight Commanders usually go for about twice that.
So, forget about it being a "collectable" (which I doubt that it is).....just shoot it and enjoy it.