Thank you so much Hyacinth.
I just started my interests with the old style coach not too long.
At first it seems like it's not too complicated to authenticate.
But then there's a lot of exceptions in any rules.
But I found it's so challenging.
I read from your previous posts and learned a lot from that.
Thank you again for sharing your knowledge to others.
Remember, the only thing consistent about Coach is its inconsistency. That's why almost every single so-called "authenticity Guide" is not just useless but actually dangerous, and why there's never any one single thing that can ever prove a Coach item is genuine, especially when it's something as ridiculous and totally illogical as the asinine "YKK Zipper Rule".
As for valid and infallible "Rules"? Not many. Coach bags never were made in Korea, and Coach Patchwork items will never have Signature C fabric on the back when there's Patchwork on the front. Those are the only valid Rules I've found so far, at least the only ones that come to mind.