Sam11;
Greetings. That is a nice looking rifle you have.
I had a Treacher 500 3" BPE back in the early 80's. After
checking about everywhere, I finally gave up. All I could
find out was that Treacher & Co. was an English owned
company trading in India. A hunting sword with the
Treacher name on it was sold at an auction about 10 years
ago so I figured that they dealt in sporting equipment
sort of like a smaller Rodda or Manton. My rifle was
also made by Adams and Tait and was pretty high quality
although not a "Best" by any stretch. Yours looks to also
be a good quality piece. Did you get this recently from
someone in So. Cal? I seem to remember one for sale
around here not long ago.
Good Luck
Raff