I've never seen a Model-1 up and personal but your movement is essentially very similar to my Model 2. The mouse release is different but not that much different. There is a snail-like cam behind the gear shown in the photo markup. The clock struck one, The mouse ran down, Hickory, dickory, dock. The modern version is as follows: Hickory, dickory, dock, The mouse ran up the clock. The earliest recorded version of the rhyme was published in London around 1744, and began, 'Hickere, Dickere Dock'. The left end of lever B moves up as the right end moves down on the cam. Hickory Dickory Dock is a popular nursery Rhyme. The upper end has a tab that catches the stop pin. There should be a long wire from point A to the mouse drop unit at the top of the clock - the length is critical. Linkage "C" appears to connect lever "B" to a wire that turns an arbor to move lever "A" to cause the mouse drop. I don't have a picture of another model-1 so not sure what is original and what is not.
Some how when lever "B" drops off the snail-like cam, lever "A" has to drop as well or nothing happens. Vintage 1979 Folk Art Wooden Christmas Ornament Hickory Dickory Dock Mouse Clock. Don't forget, they stopped making the model-1 shortly after production started because they didn't work.
(On my model-2 lever "A" is attached directly to lever "B" at the pivot so there is no need for that linkage) The prototype apparently did work but I suspect this will require a lot of critical tweaking to get it reliable. In the publication, Elmer Ellsworth Dungan and the Dickory Dickory Dock Clock, by Charles Terwilliger, Supplement to the Bulletin of the National Association of Watch and Clock Collectoes, Inc., summer 1966, pages 8-9 there are pictures of a Model-1 movement. The mouse release lever ("A" in the photo above) is in the same place as shown in George's pictures, but linkage "C" is not shown. Vintage FISHER PRICE 107 Hickory Dickory Dock Clock Radio Music 1964 Toy Working Listing in the 1960s,Vintage & Retro,Collectibles Category on eBid United. I can't tell from the pictures in the article just what moves lever "A".
It would appear that perhaps the linkage in George's pictures may not be original. Does anyone have photos of a known to be original model-1? I would caution that there were variations in the model-2 and one would assume perhaps in the model-1 as well. Hickory Dickory DockBy Paulina AguilarHickory Dickory Dock,The mouse ran up the clock.The clock struck one, The mouse ran down Hickory Dickory Dock.
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