Thread: Casting date ?
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Old 08-30-2004, 07:31 AM
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Default Re: Casting date ?
The Letter I was indeed used in the casting dates of Tonawanda & Flint blocks from what I have seen.And also on page 68 of Colvins 1970-75 book, shows the letter I being used in a picture.
If you read the same Colvin book,page 73,it states for Block #3970010,"Some of these blocks have been verified with a December "M" month letter code.It is unknown why this was done".
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