CT line in Montville to Lenox
Cosigned with MA 57 from New Marlborough to MA 23, with MA 23 to Great Barrington and US 7 north of Great Barrington.
The northern section was signed between 1930 and 1933. The southern section only appears on state maps from 1999 and 2001; I plan to go take a look eventually and see how well the signage supports this.
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