Less than 100 to multiple thousands of USD depending on specifics.
I bought one at auction for $150
You must seek the services of a qualified appraiser
$16 in 1939
What is the grip made of?
50-500 usd
50-300 usd
100-300 USD depending on condition
depending on condition of your revolver it would be worth 775.00 dollars in 50% condition up to 1,000 in 70% condition.
The model 1873 Colt Army .45 revolver was about $17.00.
100-1000 or more depending on specifics
How much a Police Colt 38 dated 1885 is worth will depend on the condition, and the demand for the piece. One that is in good condition would be worth several hundred dollars.
You will have to get it lettered by Colt to see if it is original. If not, 100-500 USD