Unfortunately, the numbers appear somewhat mutilated here. The DS420 is car 1M20008, engine 7M1336-8. This is a LHD car, the 8th one built, manufacturing date Nov 24, 1969. According to the factory records it is a maroon car. Selling dealer is listed as Tabbaq&Salamit.

The initials B.W. are from the magazine editor R.I. (Bob) Whyte.