Glass Sleeve

By Andy Smith; posted May 15, 2016

View Original (640 x 480) 86KB


Found this 2 1/2'' glass sleeve marked (pyrex) ,at an old cut case box along side the railway line, look.n fer some assistance for it, s proper use, figure it may had to probably covered some appliance or terminal, so dirt and moisture couldn, t enter..any thoughts (Chimney sleeve for a switch lantern)thanks all