Armstrong Heritage Tenor sax, serial number 84xxx

A late model Armstrong Heritage Tenor.  W.T. Armstrong corporation was the "parent" company in the US for Couf instruments. Every so often it seems a Heritage horn would be produced whether soprano, alto or tenor.  The below Heritage is a late model with 3 point keyguards (versus the 2 point in the Couf horns), a very stiff bell brace, straight tone holes, (no rolled tone holes).  While it is essentially a Superba 2 it does have the stiff (non-wire) octave arm in the neck and 2 point plastic thumb rest which are Superba 1 design.