Proofhouse.com has Colt sn data.
About 1968/1969.
100-700 USD
where do i fine serial number on acolt trooper 357 magnu .I lookes on the frame and but and all it says it 357 magnum ctg.
your colt trooper mkIII was made in 1978.
Between $300 and $475.
50-500 usd
40-400 usd
50-500 uSD
value depends on overall condition................
Up to 600 USD
100-400 USD depending on condition.
50-500 usd