Given the variation of dial makers (and fonts used on their pads), and sheer number of dial variants, I’m going to suspend disbelief and seek out some research beyond the (same) Google searches we are all presumably doing. For example, here’s an example of a Movado catalog from the 40s with two examples that have pyramid shaped markers with lines extending to the outer track. I’ll start looking for material in older catalogs, as I think that’s a better path.
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