[Envelope contains images of a event at damsite in Perris, California in runup to 1970 election. Shots of Reagan speaking, of the crowd, and of Reagan posing with Miss Inland Empire. Images related to those in envelopes 424, 425, 426, and 428.]

"As photographers from papers all over the southland crowded close for pictures, Gov. Reagan urged those assembled for ceremonies in Perris Saturday to work for the passage of Prop. 20, a Nov. 3 ballot measure which would provide money for developing recreational facilities at dams in the state water project." [Envelope contains one published image additional images related to event; envelopes 423, 425, 426, and 428 contain additional images.]