Help with Sykes Fairbairn knife

Hi all,
I'm trying to figure out the correct era for this Sykes-Fairbairn style commando knife. Thanks for looking!!

 

I have one similar in my knife pile in the garage. My experience is that if it is not an original but a later 'style of' thing, the value is purely utilitarian. I think if it was Sheffield made it would be stamped on the blade.

 

Agree, blade shape and overall workmanship are quite different from genuine F/S knives. See what I mean-look at a large number of variants here and I think you will reach a similar conclusion: http://www.fairbairnsykesfightingknives.com/ww-ii-commando-knives.html

 

Spring, did you see the story on PBS about Dumfries castle in Scotland? Weapons on the walls up the wazoo! Pet project of Prince Charles.

 

Thanks, no, will look it up.

 

Here's the link to the Dumfries Castle PBS program mentioned by Silver:

http://video.pbs.org/video/2365335663/