The Kodia 551 Antique Indicator Bolt brings an antique brass-tone finish to the 551 bathroom and trial room indicator lock, suitable for railway use. A thumb turn on the bolt case drives a long iron rod into a separate keeper, all in the same antique tone. The outside plate has a curved VACANT indicator window above a slotted turn and the Kodia mark, so people outside can see whether the room is free. The 551 also comes in SS and Black finishes. Part numbers: 551