I have a small round ( 2 1/2 inch diameter, 1 1/2 inches deep) glass and brass Waterbury clock. The Waterbury Clock Company is marked on both the face and the back. On the back there are four patented dates, May 6, 1890; Nov. 11, 1890; Dec 23, 1890 and Jan. 13 1891. I found no other markings on the inside. Obviously it was made after 1891 but how much later? Is this unusual? Would it be a bedroom clock? It does not have an alarm. The small hand on the front is a second hand.



