Very few items have serial numbers. Some older devices like the Sound Studios 1/1X and the last limited special edition of the ODR-1 Ltd. Most numbers, e.g. on base plates, indicate versions or are EAN numbers on the packaging.
Here we have set up a separate section under History. Here you will find a lot of interesting milestones.
Unfortunately, power supplies are no longer available from and and it is a special power supply with a positive and negative +/- 6.6 operating voltage. Below you will find a circuit diagram to recreate it if necessary. Possibly you can find a used Nobels SST-1 or SST-1X power supply or Rockmann X100 power supply on ebay.
Both would work too.