Leather?
OK sorry. I think that Vanson made boots at one point. If you look at the heal cup on the boot there is a badge that looks like their logo.
I googled around and found this reference to them.
http://www2.ahdra.com/ubbthreads/ubb...8097&Main=6960
You might want to drop them an email and see if they still have any NOS laying around.