[Instruments, books and other objects memorable to (almost) forgotten opinions, therapies, buildings, et cetera. Slaughter mask].
D000003:Abattoirs / Q000266:history* / Q000295:instrumentation; D000827:Animal Welfare / Q000266:history; D000818:Animals; D049672:History, 19th Century; D049673:History, 20th Century; D008397:Masks / Q000266:history* / Q000662:veterinary*; D014730:Veterinary Medicine / Q000266:history* / Q000295:instrumentation