Image from Leaping Lemming of Coeur d'Alene, Idaho In a comment on my post about the Underwood Master Model, Donald Lampert asked if I knew who designed it. At the time I didn't and, with apologies to Donald, I should have checked that out before posting. But I would have guessed Willie Dobson, and as it turns out I would have guessed right. Dobson's April 1937 mask design. The Master Model did not appear until 1939. Dobson continued to work on the Master in January 1938 (above and below)...