The Russo presentation was not the "standard" aluminium model, very light in weight - v - its bulk. The Russo piece was much heavier, the hilt parts being silvered over a heavier base metal.
This cased dagger surfaced in the UK in the late 1970's and was sold on to a US collector, changing hands a couple of times. When in the collection of the late Bob Waitts it was displayed at the Max Show and I had the opportunity to have it in hand.
Interestingly, the veteran who originaly sold the dagger said that he also had the cased "suspenders" (hangers) for the dagger "somewhere"; he never returned to the buyer's shop.
Here is a picture of three FHH, when in the late Robert Waitts collection. The silver Russo piece is in the centre flanked by two standard FHH, one with wood grip the other bakelite.
