Well found
Actually, the suit you have posted is different though; it contains the so-called Mae West, but not the parachute. This harnessuit was made in much larger numbers and was made in a pilots version(which only had provision for a seat-pack parachute), an 'observer's version (which only had provision for the chest-type parachute) and then a version which combined both
It's hard to judge, but this looks like the pilot version
Both suits look quite similar.