I carried a .22 Magnum for 11 years as a third stringer behind the duty gun and a S&W Model 42 in a leg holster. The HS was clipped to the body armor in a Bianchi #6 swede IWB holster.
From what I have seen prices for a nice one start at about $250.00...
Bob
Stupid question... Did your derringer rust up on you because I had to keep a coat of Vaseline on mine, It started freckling on me and it was a battle keeping the old girl tidy.