Status of Banta and Simmons photos

Due to the large number of photos from the Banta family and related surnames. I am attempting to donate them to the UC Riverside Special Collection archives (which requires a gift deed). Sonoma State University, Special Collection seemed interested in the Simmons related photos and I am in the process of figuring out an estimate for postage required to send the photos. I have been told that I can get the library rate from the USPS.