Can't be answered with any degree of accuracy without a detailed description of all markings, features, condition, finish, box, barrel length, who made it, etc..
0 To 400.00
We need the model- there is more than 1 Browning .380 pistol.
0-400 USD depending on model, age, condition
50-300 USD depending on EXACT model, condition.
100-300 USD or so
Check Browning.com website.
50-525 usd
About $450, depending on exact model, and exact condition.
M38
50 or so
50-350 USD or so
Take it to a gunsmith