How do you decipher Toyo serial/date numbers??

**TYP85** · 04-20-2017 06:44 PM

**TYP85** · 04-20-2017 06:48 PM

Found it!!!

**SeanB** · 04-20-2017 07:07 PM

13th week of 2009.

WWYY

**ucfbrett** · 04-20-2017 08:27 PM

It's the Julian dating system, which is common in manufacturing.

**ELO168** · 04-20-2017 10:40 PM

Almost 2 years since production.

**EricJoh** · 04-27-2017 02:31 PM

Originally Posted by ucfbrett

It's the Julian dating system, which is common in manufacturing.

Not exactly, Julian Dates are DDDYY where DDD is the day number 1 to 365. COBOL code uses them a lot.
https://en.wikipedia.org/wiki/Julian_day

**48yota** · 04-27-2017 02:37 PM

I think he is referring to the top pic, 35th week of 2015, manufactured aprox early august of 2015.

Thread: How do you decipher Toyo serial/date numbers??