Thanks for the new photo. Definitely a "K." Hardware and all else look fine???
It's possible I can be making a mistake, but to my knowledge, the last season for GH21 was
F/W 2011, before the letters appeared on the leather tags.
I apologize in advance if I'm wrong. Let's ask for correction or corroboration from someone who might be able to help.
EDIT: Just asked saira on the "Identify" thread. She is the expert on the changes for the various seasons. Let's hold on till we hear what she says.
Saira was able to verify that the LE 21GH does appear on a F/W 2012 black city. Apparently its gold is less yellow, paler than the older GGH. I can not tell, but I'm less concerned about this bag than before Saira did her detective work.