On Nov 2, 20:12, Richard Erlacher wrote:
  Well, that's interesting for sure.  Having been in
engineering since 
1963, I
  have to say I've heard the term "one-of"
countless times, since that's 
been the
  main thrust of my work since that time, and it is
short for one-of-a-kind 
I've never heard "one-of" before, only "one off" (and "2
off", "3 off",
etc) to describe a quantity.  It's commonly used here, not just in
engineering.
--
Pete                                            Peter Turnbull
                                                Network Manager
                                                University of York