Sheldon, Roy (house pseudonym, here used by Herbert James Campbell).
ATOMS IN ACTION.
London: Panther Books are Printed in Great Britain and Published by Hamilton & Co. (Stafford), Ltd., n.d. . Octavo, cloth. First edition. Issued in cloth, and in paper wrappers as Panther Books 47, this hardbound "library edition" is uncommon. Reginald 02501. Harbottle and Holland A62. Edges of pulp paper text block darkened, else a fine copy in very good dust jacket with some edge wear, rubbing along lower spine folds, dust soiling to rear panel, and clipped price. (#105416).