100-400 USD
if a single action then made about 1900. value depends on overall condition...........
A few hundred to multiple thousands depending on EXACT configuration, condition, box, papers, history, etc..
Made in 75. Rough estimate 250-350
What is the value of a Betsy Ross Pocket Watch from 1880. Excellent Condition. Serial Number inside the case is 7886190?
A Colt peacemaker with that serial number was made in 1974.
In poor condition $95, in excellent condition (near new) $370
The 28th edition of Zfestad's lists the 195K-A value at $150 in 100% condition. Excellent condition, or ~98%, is valued at $110. That's an appraised number as you can probably get around $200 or slightly more for it.
Your Colt single-action army peacemaker would be 127 years old, made in 1885,
100-500 USD
50-500 usd
1971
about 1973