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.
50-600 usd
100-1000 USD
You can download a manual from the Colt webiste; ask a gunsmith for help
100-1000 usd
Would need to know EXACT configuration and condition. Range from 100-2000 USD
it is disassembled the same way as a military 45 pistol..................
100-1000 depending on specifics
100-600 USD
210-52996 is the serial number. Mark 2 would be the series. 50-175 USD or so
You will have to call Colt to find out.
You will have to call Colt to find out.