Andre Norton - Witch World paperbook book. This is an Ace edition from 1963.

Picture from Michele Curatola.

This one has a cover price of 60c; mine was 50c and was purchased in 1968. The scanned copy is probably later in the 1960s. The novel was copyrighted 1963.

Comment from Stephen J West.

ACE single 89702.

Picture and information from ACE covers library .