DESTRUCTIVE testing of course
Shiny .. yep, the oven looked space age ... I think they were using nitrogen ... or perhaps a vacuum, I forget. Good for something like 3000c, pretty small, but all thick'ish looking stainless steel with a fancy door. Looked to only handle a couple of cubic feet.
Hoov, if I worked in a high school auto shop I'd be there on my days off. I know some of my shop teachers back in the day appeared to have a great appreciation for the high quality equipment they had. I still long after the Di-Arco bender we had in metal shop and the Logan lathes. My high school had an auto shop, metal shop and wood working shop .... AND a live fire shooting range under the cafeteria. TN in the 70's, gotta love it.