1925 Iris Society, William Rickatson Dykes Memorial Medal. Sample. By Tiffany & Co. Silver. Mint State.51 mm. 55.1 grams, XRF tested .130 fine, 0.23 troy ounces ASW. <strong>Obv:</strong> Bust right with legend IN MEMORY WM. RICKATSON DYKES above, life dates 1877-1925 below. <strong>Rev:</strong> Field of irises with society name above. <strong>Edge:</strong> Marked T. & CO. SAMPLE at 6 oclock.From the Dick Johnson Collection.