Series[UMA-SRE-20150084] Client legal documents of Blake & RiggallAccession[1962.0004] Records of Blake & RiggallIdentifierUMA-IT-000132047Scope and ContentLetters Patent, Improvement in photo lithographic photo engraving and other photo illustrative processAccess StatusAccess restrictions applyRequest TypeRequest unitUnit2015.0084 Unit 0242
Blake & Riggall, Phillip, Stephan (14 February 1888), [UMA-IT-000132047]. University of Melbourne Archives, accessed 30/04/2026, https://archives.library.unimelb.edu.au/nodes/view/615734
