Rod,
Sorry for the long delay in any reply but theire is a source of some information about the FS fighting knive.

Go to Fairbairn Sykes Fighting Knives.com and that may be of some help.

I may have an idea about the third knife which has the broad arrow on one side and England on the other.

That may have been issued the British Commando Units during WW 2 as the arrow indicates a Commando Unit.

Where in Ontario???

Wayne