Niar? Blume and his automatons. Likely a ventriloquist as well. I cannot find anything on him.
Professor Mitchell, F.O.S. in Genuine Fun. Prof. W. Mitchell, F.O.S. Sloperian Ventriloquist & Variety Entertainer, Author of “Ventriloquism Simplified,” and Proprietor of Mitchell’s Modern Mysteries.
Ventriloquist with 3 seated dummies. Faintly written on verso: “To our kind friends Pop & Maury Quinnett from Jules the ??? Prairie du Chien, Wis. c/o Harold House.