SEALINK
and you give me this one on my day off work Duncan
- well at least the British Rail days are mostly happy memories
An inverted blue version of the BR symbol was used on Sealink's funnels and flags. I just couldn't remember why it was inverted but according to wiki this was because:
1.The inverted arrows make an "S" for Sealink when in that direction.
2.While railways in the UK pass right to right (i.e. drive on the left), ships have to pass left to left (i.e. drive on the right), so this version was more accurate.
3.On the ships' funnels the symbol was reversed on the port side but correct on the starboard side, so the 'top' arrow was always pointing towards the bow of the ship.
Dave