When my Dad had my '31 Coupe as a cheap second car in 1953, I remember that it had a rubber-bladed fan mounted up high on the right side of the windshield. When I bought the car back from a cousin in 2009 or so, the fan was gone and I have looked for some modern replacement. This may do the job:
https://www.bedbathandbeyond.com/sto...eyword=fan-usb
USB voltage is 5Vdc, so our 6Vdc shouldn't abuse it too much. I got one with a 20% coupon, so I have $8.41 invested! I've soldered on a 2 pole trailer connector and the red fan wire is even positive, so the color code matches. I need to connect to the terminal box and a ground screw and figure out how to hang it yet.
https://www.fordbarn.com/forum/album...ictureid=41842