In message <5.1.1.5.2.20060510151229.03778ea0@mail.interlog.com>
          Spehro Pefhany <speff@interlog.com> wrote:

> But what I'm talking about is no part number *for* the PCB. Eg. when
> you go to re-order blank PCBs, you have no way of reliably referring to
> the part you want! How difficult is it to come up with a system (or just
> use a random sequence of letters and numbers) and put a line of text on
> the board?

I'd just use numbers. Cuts out most of the mess of people mishearing part
numbers - "Was that 98923-KDA or 98923-ADJ, Sir?"

I'd probably use something along the lines of:
  YYYYMM-SSSS-RR
  
  YYYY: Year of design
  MM:   Month of design
  SSSS: Design serial number
  RR:   Design revision number

-- 
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