Cumming, Robert. The Weight of Franchise Meat by Robert Cumming.

Self-published artist's book, 1971. First edition of 500 copies in stapled wraps. Sixteen photographs of hamburger patties being weighed on a postage scale from Orange County burger chains A + W, Bob's Big Boy, Buddy's, Burger King, Carl's Jr., Denny's, Heinz, Jack-in-the-Box, McDonald's, and Punky's. Cited on pages 146-147 of Martin Parr and Gerry Badger's The Photobook: A History, Volume II.  A near fine copy of a very collectible title with just a trace of rubbing.