39 Windshield crank ass'y

I don't have one and I need a picture of one........I have seen three different ones at a swap meet that were all "1939's". What am I looking for? Thanks guys.

 

By the way this is for a '39 Ford STD sedan, if that helps.

 

They should be the same 37 thru 39.

 

'39 is all by itself. Put an ad on the ford barn, someone will have one.

 

i'm sure I can find one, I just need to know what it looks like.....................Thanks guys.

 

The 39's control knob is on the top of the dash. Earlier ones come through the face of the dash (as in almost horizontal). Attached is a pic of a '38 unit.