Five Vintage US Navy Thin Black Somewhat and 50 similar items

I have never seen neckties like this before but there are five of them all the same so somebody liked them. The "knot" is fake, built around springy metal pieces but I cannot figure out how you put one on. But if you have used this type and found yourself wishing you could find some of them today then you got lucky! Wide front piece hangs down about 15" from the bottom of the fake knot. The thinner back piece comes out of the top and goes around your neck but after that I haven't figured out. I did a quick look and these are not "zipper" ties or anything else I found. Still ideal for the purpose intended, one for each work day of the week!