None.
Can't be answered without more information.
There is not enough information here to provide an answer.
Impossible to answer without more information.
We need a make of derringer.
50-260
50-260
Yes, many have been made in 38 Special
7627
50-80
35-90 USD
That depends entirely on what it is. Who made it and what is its condition?
S&W does not make one.