Best collection of photographic views. H.E. Watkins.--Awarded a Silver Medal. [P. 59; the artist's initials are listed in the entry section of the Transactions as "C.E." In the listing of premiums, however, the artist's initials are listed as "H.E."]
Report of the Sixth Industrial Exhibition of the Mechanics' Institute of the City of San Francisco, held at the Pavilion of the Institute, Union Square, from the 8th of August to the 12th of September, A.D. 1868. San Francisco: Woman's Co-Operative Union Print, 517 Clay Street, 1868.