I just stumbled upon this clock last spring. Just now getting the time and space in my workshop to begin working on it. It is a cuckoo quail clock. 3 train works with brass gears and wood plates. 3, 1260 gram weights. One of the weights is marked 1260 ET. I have no idea what the ET stands for. The case is in remarkable condition with no cracks. 20" from roof top to bottom of finials. The dial is also very nice and the numerals are pinned to the wooden dial. The pendulum may be a newer replacement, but the type of wood, color, and carving of the leaf match the case details exactly. It is missing one bird but I have an old suitable replacement, and the other bird is broken...the top of the head and beak came loose, but the person who sold this to me had all of the loose parts saved neatly in a baggie. The bellows do function, but I plan on re-covering them because the existing material looks pretty old. As far as the movement, It was filthy, and I used mild compressed air at first to get the dust and cobwebs removed. Then I used alcohol and q-tips and toothpicks to do my best at cleaning the pivot holes. I oiled the clock with #10 Nano-oil, and it seems to operate with just hand pressure. Now, normally, I am very thorough and most always do a disassembly and thorough cleaning of all movement parts, but, for the life of me, I cannot see a clever way to take this 3 train movement apart. Anyone with any experience with such a clock have any input on this? I appreciate your suggestions. Also, any idea of maker or age, and approximate value when back together and fully operational? Thank you.