A very interesting mechanism - note the spare holes to either side of the hour cannon gear - where there would have been a bridge for the hour cannon. Also, while not obvious, there were guide pin holes for each of the springs - all indications of changes being made in the German clock makers attempts to compete with the inexpensive, even cheap American imports. I do quite like the toggle used to trip the strike. Not a common way of handling that function, but quite elegant. And, unlike the toggle used on many such mechanisms, this one can not get "out of place" when putting the dial in place.