Here is an original Hartigan's Patent Champion Egg Opener...this Edwardian kitchen device has patent dates of 1887 and 1903...Made by the W.R. Hartigan Co. of Collinsville, Conn....Nickel plated..4" long..Teeth all in place...This topper is designed for soft-boiled or raw eggs...Retaining chain is here but disconnected...Wear consistent with age...