Try the auction sites.
It is a dual action revolver
The action is the heart of the revolver
25-65 USD
25-65 USD
Double action revolver
Single Action Army or New Service?
Need a detailed description of ALL markings.
Yes The model 10 is a 38 special revolver that may be cocked for single action and also operated in double action by trigger pull alone.
was the http://wiki.answers.com/Q/Colt_single_action_buntline_22_lr_serial_number_82593f a service revolver
1877 if it's a Single Action Army. Nothing special about the serial number.
Army special & officers model officers model special single action army & bisley revolvers police positive .38 bankers special police positive special & detective special
if double action revolver it was probably made about 1923