Keywords: Thomas Birch John Faber.jpg Thomas Birch by John Faber Jr after James Wills mezzotinto 1741 National Portrait Gallery NPG D732 http //www npg org uk/collections/search/portrait/mw41263/Thomas-Birch NPG 1741 John Faber Jr PD-old-100 https //pictures royalsociety org/image-rs-9643 James Wills painting Thomas Birch Historian John Faber the Younger National Portrait Gallery London |