Roller Derby 1973 SF Bay Bombers vs. MW Pioneers 9-8-73 1st half Championship Game

What is your favorite memory of Roller Derby? Share with everyone in the comments section. This game was skated at the San Francisco Cow Palace for the 1973 West Coast Championship. Sadly, I only have the first half, does the second half exist? I don't know, I've never seen it. I do know that the Bombers won the championship game on a protested final score.