Горький, М.  Воспоминания о Льве Николаевиче Толстом. (Берлин:  Издательство И. П. Ладыжникова, 1921).

The book is covered in paper and the old cover inside too fragile to open and scan. The title page has the indications:  Russische Bibliothek and Universitaet Basel along with numbers 144 and 602 both crossed out and D123-also found on spine of dustcover. Presumably acquired by Professor Mahler.