I thought I would post these because it's something you don't see everyday. The white one is older with a patent date Jan. 10,1899. It has P.&S. No. 129 and a half- 30 AMP 2500 VOLTS. I'm still hoping to find the insert for it. The brown one which was found with the insert is a G.E. Co. with the patent dates of Aug. 11, 1908 and Jan. 16, 1912. 30 Amp. 2500 Volts. These were the power disconnects on the power poles and were also know as "suicide boxes" as sometimes they would explode when putting the insert back into them to reconnect the power. Thanks for looking.Wolverine.