I agree with ENGINE OUT... 2 bars for s/e, 3 for m/e.
That way leaves 1 bar for anyone who may be junior!!!
How things have changed..way back in 50-60's one would have been laughed off the aerodrome if you fronted up wearing Epaulettes!
All troops joining Airlines ( Ansett-ANA anyway)in the early days had to make do with HALF a bar for the first six months.
Certainly made you realise where you fitted into the system.
After 2 years and providing you had your ATPL Subjects you were upgraded to senior F/O and sported 2 bars. This meant you still had to look up to Captains but were able to look down on junior F/O's!!!
