F-106A 57-2501 of the 102 FIW, 101 FIS Otis ANG MA was the last F-106 to leave Otis during the F-15 transition. It was flown out on 9 Feb 1988 by LtCol Townsend. Certificate and patch commemorates the event. The is certificate number 11 of 501. The patch was designed by John Lombardo and distributed by the Squadron Flight Shop in Revere MA.