To all, Would appreciate information as to how research the background of a particular sundial. I am seeking information regarding a sundial apparently made by James Botton (spelling per the face of the dial) apparently of Brystol (? Bristol) England. The item was found in Boston, Massachusetts USA and is over 60 years old. The item is approximately 25cm X 25cm, metal with a removable center piece. Thanks to all for reading and for any assistance. H. Flint