The Sword of Rhiannon / Conan the Conqueror

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Overview:

Title: The Sword of Rhiannon / Conan the Conqueror
Author: Leigh Brackett Robert E. Howard
Year: 1953
Type: Omnibuses

Editions/Publications:

Unknown. The Sword of Rhiannon / Conan the Conqueror (Unknown, Leigh Brackett, Ace Books, $0.35, 187+131 pages, dos, Omnibus)
Unknown. The Sword of Rhiannon / Conan the Conqueror (Unknown, Robert E. Howard, Ace Books, $0.35, 187+131 pages, dos, Omnibus)