Ray Palmer. Hidden World (A-1, Spring 1961). Amherst, WI: The Hidden World, 1961.
(240 x 170 mm) pp. 192. Front cover has been creased top top right corner, back cover has a dent. Pages uniformly agetoned. Covers in red, green, and copper. Overall GOOD condition.
5,000 printings distributed.
One of the four issues dealing with the Shaver Mystery (published without Shaver's