
K5
Proof sheets for Assorted Opinions and Maxims in Nietzsche's hand and in unknown handwriting.

K5a
First proof sheets of the Preface to the second volume of Human, All Too Human (1886). Corrections in Nietzsche’s hand, partly also in Heinrich Köselitz’s and in unknown handwriting.

K5a1
Second proof sheets of the Preface to the second volume of Human, All Too Human (1886). Corrections in Nietzsche’s hand, partly also in Heinrich Köselitz’s and in unknown handwriting.

K6
Proof sheets for The Wanderer and his Shadow. Corrections in Nietzsche's, Heinrich Köselitz's and in unknown handwriting.

K8
Proof sheets for Thus Spoke Zarathustra. Corrections in Nietzsche's, partly in Heinrich Köselitz's handwriting.

K13
Proof sheets for Nietzsche contra Wagner. Corrections in Heinrich Köselitz's and partly in Nietzsche's handwriting.

K14
Proof sheets for 'Ecce homo'. Corrections in Heinrich Köselitz's and partly in Nietzsche's handwriting.