Vol. 1 published 11 July 1923; copies deposited at Library of Congress 17 August 1923. Vol. 2 published 21 July 1923; copies deposited at Library of Congress 17 August 1923.
'Little blue book' series from wrapper. Title-page bears original series, 'Ten cent pocket series.'
Light blue wrapper; series number in large type; no imprint on front; no advertisements on back. See Papers of the Bibliographical Society of America LXIV: 29-78.
Pages 87-94 of volume 1 and pages 90-96 of volume 2 contain advertising matter.
Later printings issued in Little blue book series wrappers.