Discovered in Europe-Lester Merkin 3/1968:166-R. E. Naftzger, Jr. 2/23/1992-Eric Streiner-Jay Parrino (The Mint)-Tom Morley, Superior 1/1994:780-Anthony J. Terranova-Thomas D. Reynolds and Chris McCawley-Dr. Thomas Turissini 5/2/2014-The Liberty Cap Foundation
