My husband and I just returned from Greece. Partly research, partly vacation. Anyway, I spent some time looking at looms. The vertical loom seems to have disappeared. At least I didn’t see any. The looms I saw were similar to the jack loom I own, except less sophisticated. Instead of metal heddles ( the needle like things that the warp threads go through), these looms used string. Instead of a castle, or upper frame that holds the heddles, posts were erected on each side. And instead of five treadles, these looms only had two. Only simple weaving could be done with these. Like my loom, however, these treadles are tied up to the sheds so that the threads are raised and lowered in turn.