$50-$75.
50-100 USD
I just read your question while searching for parts for my Uncle's TA-38. Depending upon the condition your Derringer TA-38 is in, the prices that I have seen vary between 80.00-137.00. I'm sure that the value will increase as Obama gains speed on "crushing our 2nd Amendment Rights." Hope this helps, Bill (hndsmhry@netscape.net)
50
Made by many makers. 50-80 or so
35-100 USD or so
50-100 USD
25-50 dollars
$400
No published sn data
10-70 usd
Impossible to answer without knowing the model and who made it.