"S" on the end of date code; which factory?

Tonight I got bored and decided to look up the date codes on my Canons. With the help of the 2 sites I found, I figured out all the information really quick on my A-1 but now my TX is giving me a bit of a hard time. I got that it was made in September of 1976 but it ends in an 'S' which I can't find on any site I have come across. Is there anyone who is more knowledgable that could help me out? I'd really appreciate it.

Well, I can't answer your question but let me be the first to welcome you to Apug.

Thanks for the welcome.


I found the answer to my question so all is good.

What was the answer? This thread had me looking at my cameras trying to figure it out. My F-1 had no ending letter, but it was made in March of 1972... and I didn't have time to check my A-1 or my AE-1.