With all due respect, Anderson's was not a comprehensive complete list and had some inaccuracies. It also used mainly catalog pictures. But it had price estimates. The work and dedication need to put out the editions and update them periodically was a gargantuan tour de force.
In 1963 Tim Dannels started to publish the Engine Collectors Journal. Part of his work to produce indexes of ALL North American engines. He called upon manufacturers and fliers and collectors for help. Early on he begged for help on the Fox index. For sure there were experts out there, but Tim couldn't get the help he needed.
Finally in 2003, Doug Martin ( foxengines@aol.com now sells Fox .07s and parts) got project started. John Hall in Puyallup, WA, was the next to help Doug. I came in not long after. The articles an for about 7 issues of ECJ. In 2005 Tim incorporated the Fox material into the first volume of the American Model Engine Encyclopedia, covering engines fro 1911 through1975. There were 158 Foxes in that book. AMEE did not contain prices, bit had clear photographs and accurate descriptions.
Engines indexed included models were there was a significant change like a die change, a throttle, bearing changes, etc. Wild Bill Ives the "World's Greatest Fox Collector" was a major help, as was Dick Wolsey, Gorden Sharpe, Larry Scarinzi, Martin Denny, George Aldrich, Doc Nichols, John Krickel, Dee Hill, Les Nerig, and others ; forgive me if I didn't mention you. There was a lot to sift through, we did our best.
In 2015, Tim produced AMEE volume 2 that covered 1935 through 2015. It contain new information from1076 on, but several of the sections are completely updated including Fox. The Fox count is now up to 311 engines. Tim still has AMME v2 and back issues of ECJ
www.modelengineCollecting.com .
So if you want a complete list of Foxes this will be it. We DIDN'T include the numerous factory specials, they show up in the Engine Collectors Journal as we discover them. But you WILL NOT find a more complete list anywhere!!
My nom de plumes are G Willy, GWillie, GWillieFox, G William Mohrbacher