I drew this picture from a photograph many many decades ago, and this was the setup, hexagonal white tile on the floor, balconies full of surgical residents and medical students, spreading their microbiospheres down on the the draped patient watching the physicians doing the surgery. Notice the old style camera used for photographing the procedure and the ribbed stairs over to the right, and some dude in one of the balconies with his nose outside of his mask, caring NOT for the outcome of his transgression. I don’t know what ever happened to my original black and white sketch, but this is an old lantern slide negative that i scanned and cleaned up a little in photoshop. This seems to primitive, yet 50 years ago it was state of the art.