Time

Walker & Company, 1972, hardcover with dustjacket, 1st edition. Kelley (1928-2002) was an American writer, this is one of his 10 published science fiction novels.

"A man awakens to discover that he has lost his memory. Thus begins the often harrowing, sometimes glorious, never dull voyage of discovery for the central character of this almost mythic novel. As he travels from place to place on what he ultimately discovers to be a devastated Earth, he meets companions, friends, enemies - and himself."