I've been collecting things K-F and a limited amount of Willys material for 40+ years. While the 1951 Annual Report is hard to find, the hardest one to find (and the priceist of the lot) was the 1947 Annual Report. I am guessing that the business about getting ready to release a third offering of new stock got a lot of potential investors interested to see just what the outside CPA's had to say about some of the company's astronomical profit statements covering the 4th quarter of calendar 1947.
According to court documents, it turned out that the outside CPA firm acknowledged that even they could not figure out what it was costing K-F to build cars in 1947 due in part to the reverse depreciation on equipment and other financial manuvering which was common in American industry during late 1946 and throughout 1947 due to postwar inflation.