https://maps.app.goo.gl/ibPuuREVnLvJeksm7
was installed between 2007 and 2011 per google street views
probably is a somerville fd radio box
but it might be medford fd or state police
long shot - its adjacent to mystic river - maybe uscg or usace installed it
its under a departure path from logan - maybe massport FD installed it
amtrk train goes by 100 feet away - maybe its an amtrak box - or mbta
commuter rail
mbta buses travel there also - maybe it a T box
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the box is located in somerville - but the 2012 box list for
somerville does not show a box there - maybe it is a mass state police
box - lets check 72 mhz and 453 mhz and see if the wellington circle
msp station has a license