I appreciate it, Aaron,
Based on the production data from this site, the last VIN produced for June '63 was 000037 and the last VIN for July was 000142, so my car was built in July '63.
I just checked for another number plate on the car with the color code and body number and found it on the driver's front door jam/pillar. This was likely a carryover from prior model(s), like the 190SL, until they came out with the standard pagoda data plate in the motor compartment probably later in '63 or '64.
If anybody has more info and/or articles on these early 230SLs, I'd like to hear about it.
Thanks!
Cole.