Went into an antique store in northeastern Vermont recently, and saw 3 rods with identical patterned WMG balls. I have never seen this ball before. Also, this ball is not listed in The Complete Book of Lightening Rod Ball by Rod Krupka and Mike Bruner. And, it is not listed in the Lightning Rod Collectibles Price Guide by Russell Barnes. I am of the opinion that these are not Lightning Rod Balls. Anyone know what these are?