Winzeler, Roger (October–November 1996). "Clarke's Fairy Lamps". Glass Collectors Digest (Just Old Glass.Com). Archived from the original on December 19, 2012. Retrieved June 26, 2012.
Winzeler, Roger (October–November 1996). "Clarke's Fairy Lamps". Glass Collectors Digest (Just Old Glass.Com). Archived from the original on December 19, 2012. Retrieved June 26, 2012.