By request. These are pretty uncommon in general. Apparently they were used in the land of Brent Burger. Over here on the east coast they are tough to find at shows especially green shades. Acording to Jack Snyder " McClure, Ohio had a toll lead that was loaded with 102 NEGMs. it went to Bowling Green, Ohio many years ago. It was a stretch of multiple arms for 15 miles "

From Colin Jung "There was an independent telephone line in the Sacramento Valley that used surplus pony insulators, including NEGM.   Specifically along local roads in the Newcastle, CA area, ... they were left over from a company called the Newcastle Rural Telephone Co."

And From Brent Buger "    I found blue-aqua ones up in the northern Okanogan Valley, around Okanogan and Omak  when openwire was still common.  Also found them down around Yakima and southward  toward Prosser.  Dug a dark aqua example out of an embankment where a County road crew had scraped the hillside with a grader blade, exposing a pole hole full of hardware.  The Sumpter Valley Telephone Co. was part of the Sumpter Valley Ry.  It ran 80 miles of mainline from Baker City to Prairie City in NE Oregon.  It is said that the RR bought "everything" second hand, and if this bore true, they got a lot of bubbly green NEGM 102's from somewhere.  The line was well populated with them in varying degrees of green and bubbliness."