International signage near the US-Canada border crossing at Calais, ME.
What caught my eye about this sign is the faded text on the background of the US Route shield. My guess would be it read "STATE HIGHWAY SYSTEM"
RI border in Attleboro to NH border in Salisbury via N. Attleboro, Norwood, Boston, Revere, Danvers and Newburyport.
Paired along I-95 as a reverse multiplex in Norwood and Canton.