TLS, one page, 8.5 x 11, University of California letterhead, November 21, 1962. Letter to Dr. Robert Citron. In part: “Your extremely interesting idea will probably turn out to be a really expensive undertaking. I do not consider myself an expert in this field and furthermore my voice is not likely to have an effect in Washington these days.” A horizontal fold passing through the signature, scattered creases and wrinkling, and staple holes to the top, otherwise fine condition. RR Auction COA.