On Jan 17, 17:26, Philip Pemberton wrote:
  pete(a)dunnington.u-net.com wrote:
  I finally remembered to check mine.  It's
23-ANC13-1000034.  All Acorn
 retail product serial numbers of the era are of that form.  The 25
 tells where it was made, ANC13 is the product code, the rest is a
 serial number, which always starts at 1000000 for production systems
 or factory prototypes.  So my Archimedes 310 is 27-AKB10-1000002, my
 440 is 27-AKB20-1000614, and my A3000 is 27-AKB01-1000028. 
 Now that's
interesting. My Master 128 carries the serial number
 01-AMB15-0053025. Which means I've either got the -946975th machine to be
 made by Acorn, their labelling kit malfunctioned, or my M128 is the 
53025th
  Master 128 to leave Acorn's factory. Ah, well. At
least it hasn't got the
 serial number 13... 
I wrote "of the era".  Your Master predates ARM systems by a few years.  My
oldest Beeb is 0000672.  And will the ***** who borrowed it please return
it, if you're reading this?
--
Pete                                            Peter Turnbull
                                                Network Manager
                                                University of York