Steve - Taking note to some Mets-Yankees baseball history:
The date of the LIRR Bullpen Special described on the flyer was August 24, *1972*.
That was the scheduled date of the Mayor's Trophy Game which was a once per season
exhibition game (1963-1983) scheduled between the Mets and the Yankees.
The 1972 Mayor's Trophy Game was at Yankee Stadium: Yankees 2, Mets 1.
The tip-off to me was Ron Swoboda as a Yankee - he was with the Mets in 1967.
Another tip was the LIRR "sunrise" logo - which was not yet used in 1967.
The last Mayor's Trophy Game between the Mets and Yankees was played in 1983.
Interleague regular season play (creating the "Subway Series") began in 1997.
EXPRESS TRAIN TO NEW YORK PENN STATION-NO JAMAICA ON THIS TRAIN-PLEASE STAND CLEAR OF THE CLOSING TRAIN DOORS