Always depends on condition. $50-$100 if it needs work or has a lot of wear to $250 if in excellent condition. Last one I bought was for $25 but it needed an extractor & barrel.
400
25-75 USD
32 ACP handgun
0-100 USD or so
A gunsmith can help.
5-100 dollars
10-100 USD or so
What would you like to know about this pistol? I've done quite a bit of research on these.
Impossible to answer without a detailed description of ALL marks.
Your DW is worth $150 in absolutely mint shape to a collector. They were poorly crafted firearms and the cocking mechanism was prone to early wear.
You need a gunsmith
50-1000 USD or so depending on specifics