On sale date as given in the copyright application as listed in the Catalog of Copyright Entries, Periodicals, January-June 1955, page 3, registration number B535914.
Indexed from a scan from http://digitalcomicmuseum.com/.
On the inside front cover.
Credit for pencils and inks from Ger Apeldoorn as reported to the GCD Error list on 5 June 2011 (http://errors.comics.org/show_bug.cgi?id=7239).
On the inside back cover.