100-10000 USD depending on condition
Compare against a known original, pictures of of one or appraised by a professional who deals with Colt's.
Depending on the quality of the piece, original markings, finish, and etc the value ranges at a minimum of $500-$2000 for a mint piece
You will have to get it lettered by Colt to see if it is original. If not, 100-500 USD
http://www.wyattearp.net/buntline.html
If you call Colt they will tell you when it was made.
the original colt gold cup 70 series is worth about 1,000 dollars roughly
230 calories in a 16 oz colt 45 beer
Is it 45 ACP or 45 Long Colt? Single action or Double action? Barrel length? Finish? Need to know in order to answer. Depending on what you mean by "original registration", it may not exist.
Sam Colt did not invent the Colt 45. .
Colt - name of the company 45 - designation of the cartridge
Nothing, because it doesn't exist.
The .45 Schofield can be fired in a .45 Long Colt revolver, but the .45 Long Colt cannot be fired in a .45 Schofield revolver.