Confused About Sneaks...

Trying to understand sneaks...


I have read elsewhere and also heard on old threads on this Message Board that sneaks were just assembled at the various luger works from left-over parts.


I read in Aaron Davis' book that they might have been assembled un-officially by luger works employees outside of the factory with parts smuggled out in lunch boxes, etc.


Can sneaks apply to both cases ? If so would the factory-sneaks still have inspector markings ? (I assume the home-assembled sneaks would not.)


How do you guys spot sneaks in your luger huntings ?


Pete