Jim, welcome to the NAWCC Message Board and thanks for posting the photos of your clock. I agree it's likely antique (100 yrs+/-) or thereabouts. The dial, pendulum, and weight decorations are very typical of early 20th century (pre-WWI). Also, the pendulum leader design appears to be based on an 1890's patent that provided a pin through the "smile" to keep the pendulum from making excessive side-to-side motion (I'm not where I can get to my files, Zep would know) so that could place the age closer to 1900.
Since there doesn't appear to be any kind of logo stamped either on the movement or the dial it may be difficult to say who made the clock. Is there anything stamped on the back of the case, or perhaps some kind of label there? Is there anything on the gong mounting base? I don't recognize the movement layout, perhaps someone else here can offer an opinion.
Whatever comes up, it's a very nice clock!