You have a Second Model American Bulldog. It was manufactured from 1885 to 1899 in 22 rimfire, 32 and 38 rimfire and centerfire and 44 Webley or 44 Bulldog. It was made in a small, medium and extra large frame version with an octagon barrel. The finish is nickel plated with hard rubber grips. The barrel lengths are 2.25", 2.5", and 2 7/16". The medium frame had barrels up to 4.5". The values are:
excellent-$450, very good-$325, good-$250, fair-$175, poor-$100
I hope this helps you,
This revolver has wooden checkered grips with a picture of a bulldog on it. Does this change the value? Is it still a second model American Bulldog?
They should have the Bulldog, but there is no mention of wood grips. I double checked the Blue Book and Standard Catalog of Firearms and neither mention wood. That doesn't mean they were not a standard grip. The hard plastic are the most common and that is what is listed in the books.
It is still a second model, you can add $25 for the wood grips. They are not an expensive item and may have been cheaper than the plastic at the time your gun was made.