It has a name!! XD
Last night I worked a little more on the cover boards and made the holes in the signatures. Tonight I hope to start threading the bindings.
Coverboards and end papers. This particular style of book doesn't join the signatures with the endpapers. The fabric is, of course, vintage silk.
Signatures folded into quartos, ready to be threaded.
This is the ribbon and pale yellow thread I'm going to use. Not sure how I'll get around the fraying ribbon ends problem yet.