I saw that this 1962 Cooper Monaco T 57 # 57 was built in February 1962, the same time my own Austin Mini Cooper was built.
It had been driven in October 1962 with a Coventry Climax engine at Riverside and Laguna Seca by Graham Hill.
In later years the popular lightweight Buick V8 engine was installed.
I read this interesting Bonhams article and found the car had sat for years very near to where I work in Goleta, California.
https://www.bonhams.com/auctions/19363/lot/21/
(Ken H photos..)