CTG stands for cartridge.
Cartridge
50-500 usd
yes
100-10000 USD depending on specifics.
1000 USD, you will have to call Colt
It stands for the word "cartridge"
100-1000 USD depending on condition.
100-1000 USD or more
That Colt python was made in 1969.
That Colt python was produced in 1981.
Your colt python was made in 1961.