UPDATE: **SOLD** Was $700.
This trailer looks like a good price. I got curious about the number of Willys Overland trailers produced. After some searches, I learned that a contract for the first 10,000 trailers was given to Willys. A follow up contract for 5000 trailers was given to Bantam. Near the end of the war there were a variety of companies that produces a small number of trailers. This link shares that information: http://jeepdraw.com/Chucks_Trailers.html
“This is a World War II Willy utility trailer. It is extremely rugged and has been modified with ball hitch. Great for hunting, camping or hauling.”