Hi, Mary! From the arbour position, I believe you probably have a 30 hour clock. I’m pretty much a novice, however, in terms of putting a date or value to a clock, so I’d suggest you might want to post your question (along with some pictures) on one of the dedicated clock/horology forums. The one I rely on is the National Association of Watch and Clock Collectors message board (http://mb.nawcc.org/index.php).

Restoring one of these old clocks is truly a labour of love. Don’t expect to make any money in the process 🙂