This was first introduced in 1950 by Gladding McBean & Co as the Footed Cereal/Soup Bowl, better known as the Oatmeal Bowl.
It remained in production until the end of production for all Apple products.
I have the following Backstamp:
1 - Interpace "TV Screen" 1972
*At some point between 1963 and 1979 the "foot" shape changed.
With all my pieces when I bring them home, I hand wash them.
I do this because I don’t believe you can truly say there is “no crazing”
without getting them wet. Crazing can
hide.
So, when I say there are no chips,
cracks, crazing or repairs, I have done my due diligence to discover any
defects.