Balloon Tyre

[31 LaSalle]

I have a 1931 LaSalle with a rear mounted spare tire

my question is does anybody no how to date this tire

its a 7/7.5x19  BALLOON CUSTOM BUILT  the cooper corporation Findlay Ohia

and the number  1559 that is all the information on the tire

[TTR]

Is there any mixed set of letters & numbers (i.e. code) starting with DOT ?
If not, the tire is likely manufactured more than +/-55 years ago.

If it does have the DOT code, which was implemented and made mandatory for all public road use motor vehicle tires in late 1960s, look for the last three or four digits.
The last two will refer to the week (01-52) of the year during which it was manufactured and the third last digit refers to a year (0-9) while fourth last refers to decade (0-3, so far), but the fourth last wasn’t implemented until the current millennium, i.e. year 2000 and after.

So if the code has only three digit ending with numbers, tire was made prior to year 2000 during any decade between 1969(or so) and 2000 while with four digits, after 2000.

 

Edited August 8, 2023 by TTR (see edit history)