The earliest dials have the '12' marker lumed and are correct on the 165.014 as you can see on my 165.014 in the pic below. I'm not sure when they were used up until but would think it is quite probably correct on this 165.024-64. I also have a 165.024-64 without this early version dial but with a higher serial number 2347... so
maybe this is around the change over period for this dial type??? Would be interesting if anyone has more info on this.
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