1964 eibar winter model

hello.
I have a series 2 winter model , the question is , there are a set of four holes drilled midway up the center of the rear of the legshields, just behind the horncast cast line, are these for any purpose in particular or has someone just gone abit mental with a drill. cheers ,neil.
I have a series 2 winter model , the question is , there are a set of four holes drilled midway up the center of the rear of the legshields, just behind the horncast cast line, are these for any purpose in particular or has someone just gone abit mental with a drill. cheers ,neil.
