Coronet of Frederick, Prince of Wales.
Cyril Davenport (1848 – 1941)
G. Younghusband; C. Davenport (1919). <i>The Crown Jewels of England</i>. London: Cassell &amp; Co. p. 22. (published in the US by Funk &amp; Wagnalls, NY). First published in <i>The English Regalia</i> by Cyril Davenport, 1897, opp. p. 46.