Thanks for the responses guys. I and the car are in New Zealand! It first came to NZ in 1976. Have since contacted Dees via a generic sales enquiry email facility as this seemed the only way. No email address on their site otherwise and I seriously doubt the receptionist, should I phone them, would have the foggiest idea of how to handle my enquiry! But will phone if need be.
The car is an early '67 Lotus, colour Saluki Bronze, Parchment trim, with a Webasto sunroof.