Bill Gunn, Pres. of S&W, met with Walter "Blackie" Collins in 1972 to discuss S&W's entry into the knife market. Blackie submitted a number of different design ideas - how many, I don't know, but certainly more than one. The S&W archived correspondence for that period may reveal the quantity, etc. Unfortunately, we can't ask Blackie, as he was killed last summer in a motorcycle accident. Ed.