The grade 3 is a 16 size, 15 jewel movement with gilt plates, in a layout not used in later designs.
This example, made about 1894, is in really nice condition, and well worth a few extra photos.
This first image shows the lever-set mechanism, with the lever extended. Note the notch at the end of the lever. The wheel under that notch has a spring under it so in extended position, the wheel pops up and engages the gears for setting.
When the lever is retracted, the notch moves and the wheel is pushed down out of the way. I should probably take dial-side photos like this more often. There are a number of different lever-setting designs.
These show the top and bottom of the balance cock, with its mechanism for extra fine adjustment of the regulator.
Here is the dial-side again, with the cannon pinion, minute wheel, hour wheel and a dial washer in place.
And a nice gold hunting case completes the piece...
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