Thanks for posting the tag. My car has later VIN, earlier SPD.

More interesting is the VON - another convertible, SPD 920, has a very close VON thats only a digit or so off (last digit is illegible). It was for sale in WA state in 2016 by Rocket Restorations. Both ordered by same dealer? The other car had a license plate frame from S.L Savidge Inc. in Seattle.