Fred,
You give me too much credit but it is much appreciated. I spoke solely from my experience with regard to finding similar type features on a variety of dress bayonets, particularly the fire & police pieces. With respect to the particular history of bayonets' manufacture, I am admittedly ignorant save for what I have read in the vaious accepted references for dress bayonets.
I have several pieces that show hilts similar to Jim's piece, I would think just by virtue of their overall weight that they would have been manufactured about as late as dress pieces were produced.
I also have a pair of pieces with the simulated stag grip plates which I attributed to later war based solely on the cost & or availability of real stag.
What would you think is the latest this piece could have been produced, 1942?