Some of the insulators seen along this unpaved street on square poles might have been those made by the New England Glass Manufacturing Company (thus marked N.E.G.M. Co,). These glass insulators were produced in Somerville. No concentrated amounts of them have been found by collectors in that community. Since they did not make the deep groove, double petticoat style (CD 164) it is possible the electric utility that served this city used their CD 162 for their electric lines. If they did, then Boston Edison would have later disposed these and other shallower-groove styles since their standard (glass) insulator has been of the deep-grooved style since the early 1920s...at least.