I am a collector of primarily American clocks and recently added a tall case clock, most likely made in Pennsylvainia. I believe the case was made in Berks County prior to 1850 but still researching it. The movement I bought the clock with appears to be German and is pictured here. The movement is hallmarked but I've been unable so far to identify the source. I am happy to be apart of this memebr site to learn more about this and other clock related things.