Some of the older electronic equipment for military and scientific users had built-in ashtrays: https://mobile.twitter.com/resobscura/status/1007350511035559936

Some of the older electronic equipment for military and scientific users had built-in ashtrays: https://mobile.twitter.com/resobscura/status/1007350511035559936 https://mobile.twitter.com/resobscura/status/100735051103555...