Analysis of information sources in references of the Wikipedia article "โดมแห่งศิลา" in Thai language version.
Until 1833 the Dome of the Rock had not been measured or drawn; according to Victor Wolfgang von Hagen, ‘no architect had ever sketched its architecture, no antiquarian had traced its interior design…’ On 13 November in that year, however, Frederick Catherwood dressed up as an Egyptian officer and accompanied by an Egyptian servant ‘of great courage and assurance’, entered the buildings of the mosque with his drawing materials … ‘During six weeks, I continued to investigate every part of the mosque and its precincts.’ Thus, Catherwood made the first complete survey of the Dome of the Rock, and paved the way for many other artists in subsequent years, such as William Harvey, Ernest Richmond and Carl Friedrich Heinrich Werner.
Until 1833 the Dome of the Rock had not been measured or drawn; according to Victor Wolfgang von Hagen, ‘no architect had ever sketched its architecture, no antiquarian had traced its interior design…’ On 13 November in that year, however, Frederick Catherwood dressed up as an Egyptian officer and accompanied by an Egyptian servant ‘of great courage and assurance’, entered the buildings of the mosque with his drawing materials … ‘During six weeks, I continued to investigate every part of the mosque and its precincts.’ Thus, Catherwood made the first complete survey of the Dome of the Rock, and paved the way for many other artists in subsequent years, such as William Harvey, Ernest Richmond and Carl Friedrich Heinrich Werner.