Mystery Sling/Strap Identification, help please.

I wondered if anyone could help, please, with the identification of these slings/equipment straps? They could have originated from just about anywhere and be intended for anything. The only one with any markings that I can see is the leather sling/strap which would appear to be Swiss although I don't know what for exactly.

Any help with identifying origin and for what that each sling/strap is intended for would be greatly appreciated, thank-you, The labels with numbers are for identification purposes only so that we know which one we are talking about.

Many thanks.

This is just a wild guess, but number 4. the Swiss marked strap, may be a horse or sled pack strap. I would guess the Swiss used both circa 1936.

The bottom one looks like it could be an AK47 sling. There are a lot of varieties of those.

The top one looks British, and is probably an a/c cargo tiedown.