The vin on the radiator core support only has 6 numbers, is this normal?

On my 70 Duster the vin is on the radiator core support, driver side. I also climbed into the trunk and see that something is also stamped with 6 numbers from the upside of the package tray near the drivers side speaker. To pass inspection here in Sweden they need to see the vin stamped. I was wondering on why they did not stamp the entire vin as it's shown on the dash?