WOW that's one big frame can you tell us how tall you must be to ride it?

My brother bought a sporting bike (really racing since it had tubular tires) around 1970 when we were still kids and it was never used much until I took to riding it in 1990s in my more advanced age. After replacing wheels (because orig tubular rims made it too expensive to buy tires for it) and most of the drive train, I still ride it and in a sporting fashion. If I fish out some pic of it, I will post it.

Nice to see that people still ride the classics, downtube shifts and toe clips and all.