As you can see, the sheath has a few stains, scuff marks, scratches, bend cracks on the retainer strap, etc. Definitely used. Also, Western NEVER used Delrin in any color other than "faux stag" after to shifting to Delrin from phenolic plastic in 1961. And this yellow is way too vibrant to have Western's yellow plastic from the 1940s and 1950s, so it falls into the my catgeory of "false flag" - never a real Western factory or "custom shop" option.
And here is the ricasso stamp --
Note the faded appearance of the word WESTERN in the stamp - an obvious sign of being buffed.
Here, another angle of the stamp on this knife appears to not be buffed down, but does have the "vertical streaking" above the stamp letters indicating that buffing has been done.
This thread is posted up as another example of "false mint rehandling". The fleabay advertised price is $550, which, IMO, is WAY overpriced for a "false flag rehandle".
One side note - for some reason, the 1973 to 1976 48-6s never had a model number on the guard or the ricasso.