Apart from the big alphanumeric LU-908 (ish) on them?
Or looks that number.
That's a Wellgo code, but could be under other names as a rebranded of Wellgo.
If you search wpd-998 you'll see their spd binder in red that is the same.
thx, lads - any idea how old they are? they came on my '97 HOT & just may keep them if they are period correctish...otherwise I'll probly just end end up slapping on a pair of Chesters.