Zenith push button for 1940 table top models and some consoles. Gray color.
models: 5G441, 5G442, 6D413, 6P429, 6P430, 6S439, 5G461, 6P429, 06P430, 6S469, 7S432, 7S433, 7S434, 7S458, 7S459, 7S460, 7S461, 7S462, 7S487, 8s432, 8S433, 8S434
Dimensions: 1/2" square, 28/32" tall