Re: Inventory
"For a museum this might have been, but not for a school in the late 70's or early 80's "
Not just in the USA.
The High school I attended turned out to have the first German flag captured anywhere in the world in WW1 - it was discovered stored away in an attic in 1983 and put on display - then promptly stolen.
They couldn't file a police complaint as it hadn't been inventoried