Description

• Dos-a-dos printing [Ace Books, New York, 1972]; illustrated card covers, all block edges stained orange, firm binding, slightly chipped around edges; an excellent copy
• Stated Second Ace printing – believe first thus as both titles were first published in dos-a-dos format with other SF titles [Dr Futurity in 1960; Unteleported Man in 1964]
• Ace publication #15697 [price 95c]