Help with identifying a Schrade

[ASBOB]

I have a knife that seems hard to identify. It is a trapper with a shield marked "Miner". The tang reads:

"Schrade +
U.S.A. TM-2"

Is this a standard model? A hybrid? Made by Taylor?

Any info would be geatly appreciated.

 

[ASBOB]

Also, forgot to mention, it has the same lock feature as on the Old Timer 1940t.

 

[thawk]

It is one of five out of a special edition set. The Tradesman Series was made in 1981.

http://www.collectors-of-schrades-r.us/tradesman/Tradesmans.pdf

There are red bone, green bone, and brown bone sets.