William Smith
Posted May 21, 2016 - 2:28pm
Companies who had military contracts w/ the government were probably given specs for dials, and they were very similar across companies, with one of the differences being company name on dial.
I'm good with the "military issue" ID for now, but I'm being lazy (and too busy) to research much further now.
Maybe one of our Military buffs will chime in on the possible ID.