Screen Used Props / Vehicles / License Plates
Item: Vehicle plates
Estimated Value: unknown
Availability: unknown
Links: a ton of info at Bladezone

From an auction...

Futuristic police car license plate from Blade Runner. (Warner Bros., 1982) Metal license plate printed with no. "451" and barcode, and general studio weathering. Affixed to one of the flying police cars in the film. Measures 8 in. x 6 in. $2,500 - $3,500