Here's an old wide eared workhorse that's getting harder to find on dealers tables at shows. -- CD 257 Patent-Other (020) Mickey Mouse profile insulator. These tough units, at one time, held 250 MCM CU wire in steel mill rafters all along the three rivers here in the 'burgh. Ample dome glass along with extra glass halfway down skirt, instead of right at ring level, makes this guy extra heavy. Bubble in right ear, a couple of firebrick pieces and amber squiggle in the dome adds even more character. Has a flat slice under one ear, two scallop chips to lower skirt and three damaged SDPs. $50-$75 for this aqua mouse in the code book which is a joke for how hard these are to find nowadays. $50.00 + shipping. First email that says' "I'll take it.'. Email with questions.