Fritz Otto Finishes His Springbacks

And here we finish these springbacks / Sprungrücken started in the previous post, and the three others that were "dropped in". Whew! That was a lot of "malochen", aka hard labor ...

Full instructions (without me) can be viewed on the Book Arts Web at https://www.philobiblon.com/springback/. View the color images for the post on Insta.

Last check on spring foundation/spine stiffener.

Gluing out the spring foundation/spine stiffener from the outer edges
to the first crease.

Positioning the spring foundation/spine stiffener and then rubbing
down onto the thin boards.

Gluing out the fill that evens out the transition from
the spring foundation/spine stiffener.

Gluing down the fill.

Checking the layers of the spring foundation/spine stiffener.
In the German tradition the spine is built up in layers with the
width lining up with the inside creases.

Gluing down the thick boards. The thickness of the spring equals
the thickness of the thick boards.

Wetting out the leather.

Pasting out the leather.

Folding the outer sides of the leather with only the spine exposed
to make it easier to position on the binding.

Positioning the leather on the spine.

Working the leather into the groove and across the boards.

Turning in the leather in the area of the spine.

Making sure the turn-ins are nice and precise.

Putting down the pastedown.

It's been a busy few weeks with three more springbacks added
to the batch, as a rush job, of course. 

Here, the cutaway springback open ...
It springs!

Full instructions (without me) can be viewed on the Book Arts Web at https://www.philobiblon.com/springback/. View the color images for the post on Insta.

So, what should I work on next?