Impossible to answer without a detailed description of ALL marks.
32 ACP handgun
400
25-75 USD
A gunsmith can help.
0-100 USD or so
What would you like to know about this pistol? I've done quite a bit of research on these.
50-1000 USD or so depending on specifics
5-100 dollars
10-100 USD or so
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
when was the Deutsche werk werk erfurt 22 single made and what is the worth? I was told by a gunsmith that they were made sometime after WW1 for export to improve the trade balance for germany. They were mass produced and sold cheaply. They mostly have sentimental value. It was the first gun I ever fired when I was 6 years old. I still have it and am now aged 69.