Put hammer on half-cock and & push rear of barrel to the right.
You need to leave this to a good gunsmith.
$150
10-100 usd
10-100 usd
Only Colt knows. SN ranges compromise more than one model
Go to proofhouse.com.
yes, yes, there is. it is the model number for a .357 magnum 4 inch PYTHON. says it right on the box. the serial numbers are, of course, different and unique to each gun. There is no such Colt model number.
Chambered in 22 short. You give no description. Range of value 25-100..
Need the exact model to answer.
the colt mark 4 is a 1911 model pistol acp (automatic colt pistol ). 80 series was made during the 1980's but was not made in 40cal. from the colt factory, only in 45acp and 38 super.
300-500 USD
A Model 25 will be chambered either for 45 ACP or 45 Colt as it comes from the factory.