Why exactly do you think those Lisa disks are not original? (which they are by the way, notice the pictures on the manual match the floppies exactly – sort of a dead giveaway).
As far as that Sony disk is concerned ... that's a standard Apple label that came with a box of blank Apple disks which they sold at least into the late 90s as I always insisted my corporate office supply purchaser keep them in stock for my Mac. I think there were 12 labels per 10 disks (in case you messed up a couple). But we used Avery disk labels and printed them out on a laser printer, so those labels mostly went unused. As a result, at one time I had a stack of them I hoarded in a drawer. Absolutely NOTHING unusual about it. They occasionally turn up on eBay from time to time.
Of course I can't be sure that the guy didn't print out his own, which as several have indicated here, is quite easy to do with standard Avery labels you buy at most office supply stores, a Word template and a rainbow Apple logo graphic.