Another member (vintageb1) posted this on the Authenticate This
Coach thread recently, wondering about the mysterious red threads.
I'm posting this follow-up here for all of us who may be obsessed with the construction details of these vintage Coach bags (count me in!)
This is a different bag, currently in my possession, with a NYC creed and xxx-xxxx serial number. This photo shows where a bit of the edging was missed by the sewing machine, and you can see the red stitches underneath. Red thread was apparently used to sew the main sections of the bag together. The edging/piping was sewn on top of that.