Slings, which are real and which are not

[hsr]

In the course of my collecting I have acquired a bunch of M1 Carbine slings. Some came with a carbine and some I purchased separately. Now I am wondering which are real US GI and which are fake, or something else. So I am hoping I can impose on this of you more knowledgeable then I. I will be posting pictures with them layed out and numbered and your opinions would be appreciated. Here is the group view or one side.

I am suspicious of 2, 3, and 11. 2 and 3 I am thinking are foriegn military and 11 just looks fake. But maybe they are all fake . 6 has some gook on it that the seller said was a prservative.
Thanks, for you opinions

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