comb binder (Welling DA7)

Heavy duty comb binder.
Please note, this is just the binder, plus some combs if we can find them. (Some as pictured, some for thinner documents.)
You will need to source a punch to make the holes in the document before binding.
No instructions.
One or two of the sticking up pins are slightly bent and will need bending back upright.
We assume it still works, we've never tried it - we were given it and never got around to getting our own hole punch!
It's a well made bit of kit and deserves to be used rather than sit gathering dust.
We're in Bexleyheath, just off Pickford Lane.