Jewel Screw Orientation

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This is the most recently discovered variation.  While assembling photos for this article, (and after looking at thousands of Model 92s) the author discovered that Waltham changed the orientation of the screws holding down the upper balance cap jewel.  Up through run 11059801-11060500 they are found on a north-south axis.  The orientation of the screws changes to east-west in the 11070301-11071100 run.   Between these two runs is a run of Vanguard hunters and at this time the orientation of the cap jewel screws on these movements can not be stated.  There does not appear to be a transitional phase to this variation.