Rebels of the Red Planet / 200 Years to Christmas

From Author Wars - https://authorwars.com/publications/rebels-of-the-red-planet--200-years-to-christmas-27543.html

Overview:

Title: Rebels of the Red Planet / 200 Years to Christmas
Author: Charles L. Fontenay, J. T. McIntosh
Year: 1961
Publisher: Ace Books
Price: $0.40
Pages: 143+81
Binding: dos
Type: Omnibus
Title Reference: 200 Years to Christmas
Notes:
- Cover for Rebels of the Red Planet is stated "First Book Publication"
  - Rebels of the Red Planet 143 pages
- Cover for 200 Years to Christmas is stated "Complete Novel"
  - 200 Years to Christmas 81 pages
- Cover art for both titles is uncredited and there are no signatures visible. The ACE Image Library credits 200 Years to Christmas to Ed Valigursky.
- Cover art for Rebels of the Red Planet credited to Ed Emshwiller at Noreascon 4 Art Retrospective Catalog which shows original art too small to see a signature.
- For individual, clear images, see here for Rebels of the Red Planet and here for 200 Years to Christmas.