http://www.deloreanmarquecertificati...20Handbook.pdf
Always a good reference. See above. From VIN 1792 and up, the lighter grey ones with vinyl side visible when stowed are correct. Since your car was built in Sept '81, you need the light grey ones. These are the ones I just installed on VIN 2282 (July 81), which is also a black interior car. It is a nice contract since the light grey is very close to the head liner color, and the vinyl side is more like the seats, door panels, and dash. I got them here:
https://www.deloreango.com/us/sunvis...grey-pair.html
Also, you technically should have the Starting Instructions Label affixed to the driver's side sun visor. I put that on as well after I took the pictures. Repos are available from above or I believe DMC Houston.