The Jewels of Aptor / Second Ending

From Author Wars - https://authorwars.com/publications/the-jewels-of-aptor--second-ending-42299.html

Overview:

Title: The Jewels of Aptor / Second Ending
Author: Samuel R. Delany, James White
Year: 1962
Publisher: Ace Books
Price: $0.40
Pages: 156+100
Binding: dos
Type: Omnibus
Title Reference: Second Ending
Notes:
- The Jewels of Aptor 156 pages.
  - Artists signature on cover "Gaughan" (Jack Gaughan)
- Second Ending 100 pages.
  - Artist is uncredited and signature is not visible on cover.
- See here for Second Ending and here for The Jewels of Aptor cover.