Kevins Springback
One of the first successful Springback books I bound was a sketch book I created for my brother. After finding some rather incomplete information about the Springback structure online I started making my own prototypes. A mistake on my part converting metric to imperial lead to this book to have a pronounced lump where the too thick lever was fed into the split board covers. This structure is a couple years old at this point but last week I got to see and touch it again. I am happy to say that it is holding up beautifully and looks as new as the day I finished.