1957 Blue Resonator
This chime dates to June of 1957. Although there are no maker’s marks, it is purported to be marketed by Madison. The inspection mark is identical to those found on Edwards chimes of the 1950s and the dimensions and construction are identical to Miami-Carey chimes of the early 1960s. The Thermo-Tone chime also shared the same tooling. The painted steel cover is the same color as the 1957 Corvette door chime. This evidence suggests this chime was manufactured along side Miami-Carey door chimes sometime shortly after the Edwards residential door chime business was acquired by Miami-Carey.