In many bars and other eateries in Spain you may see a line or a forest of large cured hams hanging overhead, above the bar or from the ceiling. I assumed they were for sale - and they are, but mainly they are there because the bar uses them, shaving off fine slices to provide ham for sandwiches, etc. They take down one at a time and mount it in a special carving stand on the counter, and use a very sharp knife to shave pieces off.