on Thu Oct 21 20:48:33 2010, in response to Re: NYCTA Bus Roster 1/1/73, posted by Bill from Maspeth on Thu Oct 21 20:37:31 2010.
I think it might be the year ordered. I was living in Illinois from June 1971-June 1974, but I came back to NYC at Christmas time (once for Easter) and summers. I don't remember seeing the 7000/7100 Flxibles until I arrived back in NYC for good on 6/22/74. They definitely weren't around during Christmas 1973. Same for the 6000/6100s, didn't see them until April 1972.