old clock

All i know is that this clock was found among other antiques in a old building on my Grandfathers property in Oklahoma. We are unsure of the maker because we found no distinquishing marks or anything. I checked in some antique books and did some online work but found nothing. would be curious about any information on the maker and the age of the clock and also the value if possible. this is the only picture i have of it but could possibly get more sent to me. thank you