Dumma Branding is the design house of Duminda Perera. Duminda is currently involved in an ongoing logo project for design every day one Original, Clever, Wordmark/Verbicons or Negative logo.
An additional concept for the same project here, http://samadarag.deviantart.com/art/Nineteen-455034919 More on Behance, https://www.behance.net/gallery/17196859/Nineteen-Monogram