Depends on model and condition- you did not share that, and we do not have enough info to answer.
38 Special and .357 Magnum.
100-300 or so
NO!!!!!!!!!!!!!!!!! DO NOT TRY THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Derringer 2 Shot, 357 Mag, SN 929, what is the value
DO NOT ATTMEPT THIS!!!!!!!!!!!!!!!! UNSAFE!!!!!!!!!!!!!!!!! DANGEROUS!!!!!!!!!!!!!!!!
You don't have enough money to buy mine.
25-80
Depends exactly what model 605. My dealer is getting me the stainless 605, 2" barrel, for $325. Blue was quoted to me at $25 less.
175 USD
fair brand new
@ 300 USD
200-500