I managed to unbind the Monotype specimen book, for it was held together with posts and screws (which I remembered reading in the description when I bought it). The pages are three-hole punched in the usual way. Many more scans now are possible.
There is no way I would have been able to scan stuff near the binding with those posts holding the spine rigid. You can't break in brass, and indeed it wasn't broken in.
Some of the stuff inside was staple-bound rather than single sheets, which is a miniscule problem, but such is life.
I have had to set aside a special shelf space for the unbound pages. It is like in the earliest years of printing, when a book was bought unbound, and one took it to a bookbinder if the expense was justifiable.
I feel like hell now, though, from the physical work.