Our own Ron Newman reports on the continued existence of this transfer dispenser at the Back Bay Orange Line stop that once spit out tickets you could use to get on the 39 bus:
I don't think this machine has served a useful purpose since the MBTA introduced the CharlieCard in 2006. Yet it is still plugged in, and still makes a sound (though it no longer dispenses a paper transfer ticket) when you push the button.
Even though the need for it went away once CharlieCards meant you could transfer for free from a subway stop to a bus line, the device still serves a purpose, Apparently Inebriated Rudy reports:
It maybe be old but it’s a good place to set your DD ice coffee while you tie your shoe or find your T pass.