New England Tel & Tel Porcelain Sign

New England Tel & Tel Porcelain Sign Large 16 x 16. This is part of my NET&T collection. Good condition blue with white lettering, double sided.
The New England Telephone and Telegraph Company was formed February 12, 1878, by investors in the states of Massachusetts and Rhode Island at the behest of an agent of Gardiner Greene Hubbard, the father-in-law of telephone inventor Alexander Graham Bell.
New England Telephone and Telegraph merged with the Bell Telephone Company (which was started on the basis of holding "potentially valuable patents"), on February 17, 1879, to form the National Bell Telephone Company, at which time Theodore Vail took over its operations. The National Bell Telephone Company merged with others on March 20, 1880 to form the American Bell Telephone Company.
The New England Telephone and Telegraph Company was a very early company set up to develop the then-new telephone.
New England Telephone and Telegraph lasted only a year as a separate entity, from 1878 to 1879, and had no direct relationship with the later company of the same name, which after the breakup of the Bell System in 1984 became part of the NYNEX Corporation, now part of Verizon.