http://www.thecrimson.com/article/2001/9/10/mbta-begins-new-night-owl-late/
This is the only article I can find that talks about transfers on the old Night Owl system. Does anyone remember how it worked?
Fares will be comparable to the cost of riding the T and free transfers between buses can be requested upon boarding. Transfers are only valid between Night Owl buses at Government Center or Kenmore Square. The Night Owl buses will accept coins and T tokens, although drivers may accept dollar bills at their discretion and change will not be provided.
This is the only article I can find that talks about transfers on the old Night Owl system. Does anyone remember how it worked?