Tom,thanks for the note , Mobrau Your clock is a bit odd as it has some of the features of the early (pre 1918) master clocks. the upper movement does it have any glass mercury rings? on the pre 1918 master clocks it had two one to impulse the outside clock slave movements and the other to activate the mid movement which is used to impulse the outside chimes for the hour count. there would normally be a lower movement to chime on the qtr. hour but I don't see it on yours. See attached photo's. The case is very odd too and I have never seen one quite like it most of the earliest cases were oak although other woods may have been used. I personally don't see the case you have as a plus as it isn't much to look at and other than the marble back board looks like a cost saving measure so unless you can find a local buyer for it complete it would be in my humble opinion a tough sell when shipping is involved. I have seen a couple of the early master clocks with the three movements oak cased, complete and in good overall condition sell through Harris Auctions and Ebay in the $350.00 to $450.00 range that I thought went cheap but there seems to be little interest in these units unless they are a show piece with stained glass front and beveled glass sides then they seem to sell in the $1,000.00 to $1,500.00 range. More detailed pictures of your clock would help in identifying it's particular use and determining a value if possible. I guess it's whatever someone is willing to pay,but for me I just see parts.
regards
George