Patent dates are: Nov. 27, 1894, Sept. 8, 1896, Apr. 13, 1897, Dec. 8, 1903. The oak case is stamped, 683251 and the speaker has the number 843681L. Bells ring when you turn the crank and the battery holds a charge. A nice added touch is the phone number holder in a little plaque reading, "Speak Directly into Mouth Piece". The case is 33" tall, 12" wide and 8-1/2" deep. Overall, this phone is in excellent condition with lovely painted leaf design embellishments as you can see in the photos. It could use a good cleaning, but a wonderful collectors wall phone you don't find every day. Price: $475