Have a gunsmith examine it.
25-70 USD or so
Internet, gun shop, gun show, want ads.
50-200 USD or so depending on specifics
NO
The value of an Arminius .357 caliber 6-shot revolver can vary depending on its condition, age, and specific model. Generally, prices range from $150 to $300 for a used model. It's recommended to have the firearm appraised by a professional to get an accurate value.
$50-$150
No published sn data
$50-$75. Maker is Hermann Weirauch.
Try e-gunparts.com
You could do worse
45 ACP can be used in both auto and revolver. The revolver must have a 45 ACP cylinder.
S&W has never made a 35 cal revolver for commercial sale.