8 3/4 center chunk ?

Does anyone know where the date code is on a center chunk? an would it be a 3 or 4 or 5 digit code? I need one for late oct. or very early nov. of 69. I have found one that the guy who has it said it has a 119 on it, would that mean nov. of 69, or would it be jan. 69 ?

I`m just not sure so hopefully someone will chime in with some info on this Thanks Mark
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