What does this mean?

I've only seen the FS for Final Sale, X for TJMaxx/Marshalls & O (bullseye) for the outlets. BTW I just checked all my Legacy bags I got at the outlet on Saturday & none of them are marked!!!
 
I would hope if it is FS that they gave you extra money off. The slim flap I was offered to buy on Sat for FS was going to be another 10% off but I decided not to get it.