I have come across a flathead Ford cooling fan and having trouble identifying the model/year application. I thought it goes to my 1939 Ford Deluxe, but the Green Bible doesn't match. The fan is 6 blades with an overall diameter of 15 3/4 inches. The rear hub diameter is 3 3/4 inches. The overall length is 3 3/4 inches. The mounting bolt circle is 2 5/8 inch diameter. See the photos.