Leg straps for M3 knife

My posts are about new things I have discovered about the history of airborne uniforms, equipment and insignia. Often updates to my articles about paratrooper related topics, but also new items for sale, or books, museums or events.
I now own several different leg straps for the scabbard of the M3 knife (either M6 of M8 types). The shortest one in this picture is a replica for certain. The two other ones are supposed to be authentic. They sure look authentic, in that they look old and

Knife Sheath With Leg Strap

U.S. M3 Trench Knife w/ M6 Leather Scabbard - Reproduction - Hero Outdoors

Musette bag M1936 - draagriem / carry strap, Uitrusting

Leg Strap for M3 Fighting Knife - Delware Trading BV

M3 Trench Knife - Canada

D-DAY 101st Airborne US ARMY PARATROOPER JUMP KNIFE AND SCABBARDS, JUNE 1944 M3 knife and scabbard 12 x 2.5in (30 x 6cm) - Bonhams

Knife Leg Straps

Model 6305 ALS/SLS Tactical Holster w/ Quick-Release Leg Strap for Glock 17 w/ Light/Pressure Switch

M3 Trench Knife - Canada

Dive Knife Leg Straps

Victorinox Black leather strap with buckle in Black leather strap with buckle - 005546

Thigh Holster for Women，Concealed Carry Gun Holster for Pistols，Universal Gun Leg Holster for Women - AliExpress

Leg straps for M3 knife