Many years ago, a terminally ill patient of my ex gave her his A4 notebook/ sketchbook of his combat experiences, and I had a look through it.

He had fought at Monte Cassino, there were pen-and-ink sketches of his comrades sheltering in some of the ruins or a tank going over the rubble, and things like that. He showed it to my ex because he said his family weren't interested in it and would just throw it away once he had died, I think she did give it back to him in the end but i suggested he offered it to the Imperial War Museum. I hope it did get preserved.