Check the on line auction sites for what they have sold for. Blue Book of Gun Values might have it listed.
The Butler 22 caliber single shot pistol was made by Derringer. The Derringer company was founded by Henry Derringer. Derringer pistols are the smallest handguns available and were most commonly used by women.
50 USD
$50-$75.
25-100 usd
35-75 USD
10-100 usd
$250.00 if in excellent condition
No more than 50 USD
About $250-300, depending on condition.
10-100 usd
About $250-300, depending on condition.
50-300 depending on specifics