3 1/2” - 3” – 2 7/8” X 3 3/8” (90mm - 76mm - 73mm X 87mm)

No markings (pink asbestos material)

Picture courtesy Rick Soller

3 1/2” - 3” X 2 1/4” (90mm - 76mm X 57mm)

No markings (top section - dimensions not including bolt)

Picture courtesy Rick Soller

2 7/8” X 1 1/8” (73mm X 29mm)

No markings (base section)

Picture courtesy Rick Soller