Both books from the Radio Planet series, "The Radio Beasts" and "The Radio Planet," by Ralph Milne Farley from my father's collection.

"The Radio Beasts," 1964 Ace Books #F-304, 191 pages.  First published in 1925 (100 years ago!!!).  Cover and fronstpiece illustration by Emsh.  Very good condition with light wear; solid and tight, has a booksellers price stamp of 20c and a couple of minor creases on the front cover. 

"The Radio Planet," 1964 Ace Books, #F-312, 224 pages.  First published in 1926 (99 years ago!!!).  Cover by John Schoenherr and interior illustrations by Jack Gaughan.  Very good condition with light wear; solid and tight, has some creases on the front and some vertical creases along the back cover near the slpine.

Please see photos for more condition details.

This is one of the many comic books, pulp magazines, paperbacks, and hardcovers I have inherited from my father, who had been collecting from the mid-1940s in Maine until his death in the late 1990s in Los Angeles.  I combine orders to save on shipping!