Hello Wietse,
Welcome to the Board. I am the friend Antoon refers to who 'recognized' the car ;)
Back in 1992 Stoutjesdijk in Soest (currently I think it is called De Groot) had a 69 Coronet 2dr hardtop for sale with a 440. Back then those cars were pretty rare in Holland (even more rare than they are now
) and I have remembered it from the ad I saw in the Auto Trader. The ad was in black/white and the car was a very dark grey shade in the pictures, so I guess that it might have been dark green as you mentioned in an earlier post that you saw dark green paint. I am not 100% sure but I think it was advertised as dark green. The car also had the hood scoops and the side scoops. I have contacted a friend of mine, whose father was working at Stoutjesdijk at the time. Perhaps he still knows this car.
Here is a picture I have in my image collection of vintage car pictures in Holland:
This is - as you can see - a 70 Coronet taxi in Holland with license plate 71-56-MD. Usually a series of sequential license plates is reserved for a certain make. As your license plate is 71-58-MD, in todays market that would mean that the cars were registered practically the same day. However, back then and certainly with US cars these were not sold and registered as fast on a daily basis as they are now. There could be weeks or months in between registrations, however, I doubt that your car was not sold in 1969, but 6-12 months later in 1970
and registered as a 1970 model according to the VIN when it was sold. It would have received a duplicate VIN stamping on the inner fender with the complete 1969 VIN.
You can try and check underneath the driver's side trunk rail under weather stripping for a partial VIN that should match your car's original VIN. It should be a letter, then a 9 (for 1969) and then the 6-digit sequence number of your car.
PM me if you have any more questions.
Groeten uit Sint Maartensdijk ;)
Wishnu Ville
a.k.a. SuperFly TNT