The Blue Book suggests a value of $100 in 60% condition , $145 in 90%, or $275 in 100% new condition.
impossible to answer without a detailed description of all markings, features, condition, box, papers, accessories, etc..
What is the value of an ERMA Werke kgp 68 9mm ?
50-200 depending on specifics
The value of an Erma-Werke handgun actually depends on a number of things. Some of these things include the age and condition of the handgun.