Lightning Rod Ball Guide – Round, Threaded
Maker – Various
Date – Late 19th – Early 20th Century
Sizes – 4-1/2″ Diameter
Colors – Amber, BMG, BMG flashed over WMG,
Cobalt, Gold Merc, Red, SCA, Silver Merc, WMG.
Notable – Plain round Ball with threaded collars for screw on caps.
Openings are generally wide.