We need make, model, condition to answer. You gave us none of the 3 items we need- and we need all three.
There have been a number of "hammerless" revolvers made, ranging from the tiny Baby Hammerless .22, thru the Iver Johnson and US Revolver Hammerless topbreaks, and includinurrent day Smoth & Wesson revolvers. All DO have hammers that are internal to the handgun frame.
An Iver Johnson revolver in 32 caliber was used to assassinate President McKinley. 2 shots were fired, one hitting his breastbone did not penetrate, the second shot entered lower and damaged a number or organs. The bullet was not removed.
No published sn data.
I have almost the same revolver, you find out what is the value?
1912
1910
1911
1871
2006
what model, caliber. ????????
Caliber should be on the barrel. SN's were not required until 1968
Early 1930s