Front of cleaned mechanism. A number of things to note: Firstly, the extremely fine levers, springs and racks on the front of the plate. As you come to know Vienna Regulator mechanisms you realize that all the thinnest sections are the areas where the original maker would make minor adjustments, bending the thin sections to make the final adjustments on the strike train mechanisms. And, if one is lucky, and no less trained clock maker has made their own adjustments, it will work perfectly just the way it is!
Another interesting thing about this shot is the scarring to the plate between the 5 and 6 position. This is residual evidence of flaws that were in the brass when it was rolled originally. I am a bit surprised to find this on such an extremely high quality mechanism, but, on the other hand, it is in a location that does not in any way impact the operation of the clock. Even the finest shops were clearly doing some economizing in the latter portion of the 1800's. Thank goodness they did not skimp in any way on the quality of their work.
Note too the perfection of the hands. Being a Marenzeller it is not surprising to see the extremely delicate hands of perhaps 10 years earlier in a Serpentine case. Older makers clung to their standards and the styles they were use to when making their mechanisms, which were then placed in cases that were up to the latest fashions.