TOSRV in the 1970's

Year	Poster	Patch	Notes
1970			May 9-10 1,000 riders
1971			May 8-9 1,600 riders
1972			May 13-14 2,200 riders
1973			May 12-13 2,500 riders
1974			May 11-12 3,000 riders
1975			May 10-11 3,000 riders
1976			May 8-9 3,300 riders
1977			May 7-8 3,500 riders
1978			May 13-14 3,500 riders
1979			May 12-13 3,500 riders

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