In decent shootable condition you are looking at a value around $150.
100 USD or so
It is a dual action revolver
You take it to someone who specializes in them.
50 or so
Yes their a good single action revolver
1873 was the date of the first one.
depends on the model revolver. single action just in front of trigger guard............ modern revolver bottom of butt............
1927
1895
1962
10-100 usd