1975 - ATO B's Mongoose is pushed up Hill 5 in an unknown heat (courtesy of the CMU Archives)B

1975 - Hill 1-2 Transition of Prelims Heat 6, with Fringe B's Baby Leroy in Lane 2 (foreground) and DTD A's Delta Queen in Lane 1 (background right) (courtesy of the CMU Archives)

1975 – DTD’s driver gets his helmet adjusted (courtesy of the CMU Archives)

The Hill 1-2 Transition, likely in 1975 Prelims Heat 8, with PhiKap A's Shadow in Lane 1 (right) and PiKA B's Pi-Thon in Lane 2 (left) (courtesy of the CMU Archives)

SigNu's Sinex is pushed up the backhills in an unknown year, possibly 1975 (courtesy of the CMU Archives