I'm really curious about this piece and it's history. It's also sort of astounding that in Sept. of 2024 you were able to locate one and had the opportnity buy it.
I imagine someone like Ted Spehar or Sox would have had access to something like that when they were actively racing but even in '70-'71 before they went to Lencos there couldn't have been many of these cases available for non-factory supported racers.