The document discusses extending access to the BT Design Register, which contains over 11,000 volumes and boxes of designs registered for copyright protection between 1839-1991. It focuses on the BT43 and BT44 series from 1842-1884, which contain over 400,000 design representations across hundreds of volumes. The document outlines challenges in managing the collection, efforts to digitize the design records and representations, and methods to improve online access and exploration of the digitized materials, such as transcription, cataloging, and using polynomial texture mapping to virtually re-light and zoom in on design images.