I very much enjoyed reading the information about Datsun on your site.
Thanks to this I now know more about the Datsun that is owed by a family
member since 1979. I think that I have identified this care as a factory tuned 150hp Datsun (SRL311) roadster built in 1967. Car and motor numbers
match within the ranges you mention. Color number is 666 Silvergray.
Speedometer reads kilometers, so I assume it is an original in Europe
imported specimen (probably Switzerland). As far as I know these cars were
never imported in the Netherlands.
A qualified car magazine in the Netherlands 'Autokampioen' made a
commentary which will be published within a few weeks.
Gert van der Geest (5/3/2000)