This city is about 5 miles south of Boston and up until around 1960 was served by the Quincy Electric Light & Power Company, later slightly abbreviated as the Quincy Light and Power Company. The latter probably took place once the company was a subsidary of the New England Power Service Company. In 1960 the Quincy company as well as many other New England Power Co. holdings became the Massachusetts Electric Company. For decades the Quincy utility employed pole tags marked "QEL&P Co." and later "QL&P. Co" on the ends of every crossarm they installed. This could have been continuing company policy to identify pole-line utility property as enacted by Massachusetts statute around 1907. Without a sunset-clause in that legislation, many larger utilities here in New England marked their insulators to identify their lines (such as NEP-stamped insulators as "New England Power), etc. New England Telephone & Telegraph Company *always* similarly tagged their crossarms like the forementioned New England Power companies did despite using lots of CD 104 insulators with their name on them. All of the alunimum pole tags I have found relative to the New England Power Service were stamped alunimum. I roughly guess these are 1930s and later. In prior years crossarms were stenciled with white paint identifying their owners here in Massachusetts including the phone company and fire alarm telegraph ones. This requirement was enacted for lineworker safety so that specific wires could be identified upon the then-cluttered poles...