Really good condition one at the show for an amazing price, but I am not familiar with the non-musket (civilian) types.

It has a 24" bbl, full length mannlicher schonauer style stock, no rear leaf and no indication that there ever was one, rear sight is a peep on the back end of the bolt. 70%+ bluing.

I don't get the impression that this was a Navy issue rifle that was bubba'ed, but a commercial one that may have been re-stocked to M-S configuration, or initially made that way.