Hi Steve,
The picture is a Sandcast #1000393 E-1000313
It is the bike of Michel Rougerie who is one of the two pilots who won the 24 hours of the BOL D'OR of September 13, 1969.
This motorcycle was offered to him as a reward by Mr. Vilaseca director of Honda France, and this motorcycle was part of the seventy-three Sandcast motorcycles arrived in France and labeled California.