[Healeys] Overdrive i.d.

[fogbro1 at comcast.net]

List,



I have a Healey overdrive with the following on the i.d. tag: " GB 456007
22A709/003695" .



I understand the "22" andB  "003695" is the serial number of this particular
unit, but what's the meaning of "GBB  456007" andB  "A709"?



Thanks,



Ed Woods