F. M. Locke porcelain signals
   Fred M. Locke, the father of porcelain insulators actually had his start in glass insulators in the 1890's. There is a great deal of information about the man and his career covered very well by other collectors such as Elton Gish. I couldn't possibly do justice to these works here.
    Reported styles:
U-242, U259, U-259A

    Reported colors: tan, white, brown
U-259s incised on dome "FRED M. LOCKE/VICTOR, N. Y.".
U259 U259
Speaking of Mr. Gish. this unique U-242 F.M. Locke is part of his collection.