Reuterswärd, Carl Fredrik; På samma gång. A. Bonniers förlag, Stockholm, 1961. Första upplagan.
Softbound, oblong - 12o, in white wrappers with black lettering. Wrappers a bit soiled. Consists of groups of worlds. 80 worlds in 20 groups ( 4 in each) on each leaf. Not paginated, but 42 leaves.