"C" prefix indicates 1942
Almost all of Benjamin pistols were single shot except for a very few later models. Benjamin used the term "Super single shot" on several models. However each model had a three digit model number that identified the model and from this you could determine the years it was made. Please look at your pistol again and state the model number.
With the serial number that you have provided,your Hi-Standard model E pistol was made by that firm in the year 1939.
Your Browning model nomad 22cal pistol was made in the year 1971.
Model 177 Bullseye Target pistol They were made between 1957-1978
It was made from 1946 to 1985.
This would be a Browning Challenger .22 pistol made in 1970.
If the pistol is a model 1903 hammerless it was made in 1907 I cannot tell you the value.
Impossible to answer without the serial number.
'K' prefix to serial number indicates 1950.
Go to the Ruger website, customer service, historical data, pistol, find your model, and there is a serial number/ year of production list.With the serial number that you provided,your Ruger standard model single six revolver was made in 1960.If you have a standard model automatic Mark I pistol,it was made in 1957.
Between 1888-1916,depending on the model,the action type,and barrel length.