A tid bit more information on Richards Sheffield and a little "eye candy" for those willing to look. haha

When in Germany, they spelled there name with a "z" (Ritchardz). There knives were of decent quality - solid construction.

There knives were stamped with a logo of a "whale" on the front of the tang and Richardz stamped on the back. They left Germany pre WWII and moved to Sheffield then re-spelled there name using a "s". Logics tells me this move and name spelling change was done in foresight of what was to come as Germans were were advancing with there aggressions.

The company, now in England, started producing the "shell handle" knives as well as a line of gent's knives and souviners

such as your knife, Mike. It seems most of the souviners were exported to Canada. The most common ones are the R.C.M.P (Royal Canadain Mounted  Police) with an image of a mounted officer printed on them.

I haver NEVER seen one like yours before, Mike!!!

Below are some counter display cards that a friend in the UK sent to me. All the cards were empty when I got them. It was the thrill of the chase in filling them with the knives... The Sheriff card is NOS.

Joe

Mike, just a little more info-- Can't tell if it is due to the age of your knife or just an unusual variation, but the other examples of this knife I  can find look like this, with a pronounced blue color in the handle-- Just saying---

Wow! Thank you all doesn't describe what I want to say, but the knowledge share here is great! I am soaking all of this in the best I can.

Those are some impressive displays to say the least Joe! 

And John, I would have to say it must be a variation of some sort, but age does do funny things sometimes, and this one being in not the greatest over shape, but the coloring looks to be different instead of just discoloration, I am such an amateur that I can't say for sure. 

Thank you all so much guys. I am so glad I found IKC, just wish I found it sooner.