This auction is for one antique ART DECO HONEYWELL THERMOSTAT BRASS REGULATOR in excellent condition. It is made to come apart with a squeeze on the sides, see pictures. It is marked clearly on the side, " MINNEAPOLIS-HONEYWELL-REGULATER CO. / MINNEAPOLIS, MINN. / WABASH, IND" We took many pictures inside in out, see them for condition. There is a little surface rust on the inside cover, pictured. Our feedback is 100% after selling over 3000 items. We ship every day and know how to pack an item. Ask questions will get back to you.