How to determine the year of manufacture on tires?

[Squirrel]

I've been searching online for how to determine the year of manufacture on a tire, but the explanations I've found and the pictures I've seen don't match up with the info I've got on the tires on the tent trailer we're considering buying.  Here's what I've got:

Duro Trailer

Then there something that looks like an O with a dot in the middle, 44, a backwards "C", 32, and another O with a dot in the middle.

Then there's B78-13ST

HF - 502  - 5

H - 203

H-147

Do any of these numbers speak of the date of manufacture to anyone in the know?

Thanks,
Squirrel

 

[Tom]

Did you check our Glossary of RV Terms? This is what it says about Tire manufacturing date codes. Looks like you might have 3-digit date codes.

 

[Squirrel]

Did you check our Glossary of RV Terms? This is what it says about Tire manufacturing date codes. Looks like you might have 3-digit date codes.

No!  I didn't know that post existed.  I had done a bit of searching for things to do with tires and dates, but that didn't show up.  Thank you so much!  I will check it out.

 

[Tom]

Our Glossary, Resources, and Library all have separate buttons in the toolbar above, although their contents aren't searchable using the forum (message) Search button. (The library has it's own search engine).