Three volumes of the Buchbinderlehrling showing variations in  reinforcement placement. All bindings presumably by apprentices. From left: ...

And here we finish these springbacks / Sprungrücken started in the previous post , and the three others that were "dropped in". Wh...

Decided to pull out the old, analog Pentax again to put Fritz Otto in front of the lens ... (35mm lens with Ilford HP 5)  Below we see Fritz...