Belgian
Impossible to answer without a detailed description of all markings and the weapon.
Gun shop, gun show, want ad, e-gunparts.com
$150
10-100 usd
The value of a German made 22 caliber revolver would actually be dependent upon a number of factors. Some of those factors would include the age and condition of the revolver.
7627
25-60 or so
$20-$100, depending on condition.
20-80 usd
EIG is the importer, they imported a lot of firearms from different manufacturers in the 1950s and 1960s. They do not have a lot of value, usually around $100.
$1500.00