08-10-2009, 11:01 PM
Model 620 does not use a shadow mask. Instead, all three band indicators are always illuminated.
Model 625, which came out in January 1936, does include a shadow mask which makes only the pointer glow which corresponds to the selected band.
Model 625, which came out in January 1936, does include a shadow mask which makes only the pointer glow which corresponds to the selected band.
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Ron Ramirez
Ferdinand IN
