(dome) P.R.R. (skirt) B

Picture Courtesy Bob Berry

A.T. & T. Co.

Picture Courtesy Bob Berry

HEMINGRAY-50 // MADE IN U.S.A.

Picture Courtesy Bob Berry

"diamond" / "diamond" (Canada)

Picture Courtesy Bob Berry

HEMINGRAY-50 // MADE IN U.S.A.

Picture Courtesy Bob Berry

K (Knowles product)

Picture Courtesy Bob Berry

"Prism" (Knowles product)

Picture Courtesy Bob Berry

TWO PIECE / TRANSPOSITION

Picture Courtesy Bob Berry