N° 56428
On Serial N° 56428, whose tune sheet is in fig. 1-19 the comb slopes at 5 degrees to the bedplate and the cylinder axis is ¼“ (6 mm) below the tooth tips, so the critical comb/cylinder angle is 18 degrees as noted on other Mermod movements. The tune track width is the conventional 0.017“ (0.43 mm). (Bulleid: Cylinder Musical Box Technology, 1994, p. 24-28)
There is no felt oiling pad as on interchangeables, and the oiling hole is covered over by the list of patents, which is more than a bit stupid, see fig. 1-20. (Bulleid: Cylinder Musical Box Technology, 1994, p. 24-28)
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