Sherston’s Progress - By Siegfried Sassoon, published in 1936 by Bernhard Tauchnitz, Leipzig. This is Edition Number 5292 in the British and American Authors series.
I already had the other two memoirs in the series, numbers 4975 and 4976, and this volume which was harder to find, completes the trilogy (left), in the Tauchnitz editions series. None of these Tauchnitz editions were collated by Keynes.
This volume, although a softback like the previous two, also comes with a dust jacket. I am not sure if the others originally had jackets too. The book is also taller as can clearly be seen.
There is an explanation of the jacket colour scheme on the rear flyleaf. Yellow volumes were ‘Psychological novels, essays, etc.’