...covering Australian comics
Hitchcock Publications is a generic name used for this publisher where the specific printed name is not logged in the AusReprints database. The printed publisher name might be different.
149 Castlereagh Street, Sydney
?, North Sydney
Hitchcock Publications reprinted for Australian (and possibly the UK) the US Alfred Hitchock's Mystery Magazine. It's shares a street address with Magazine Management, although the nature of the relationship is unknown.
Some publishers used diverse publisher names in their comics. These can reflect distinct operating divisions, but may just disguise operations in the face of bans or censorship. Ausreprints records minor variations as they can help dating for undated comics.