I use my charm on my Legacy bag. I don't even think about mixing metals.
Plus, January's catalog had a M charm on an Andrea Satchel...it's not a Legacy, but it a was mixing of silver nickel with the gold hardware on the purse.
Plus, January's catalog had a M charm on an Andrea Satchel...it's not a Legacy, but it a was mixing of silver nickel with the gold hardware on the purse.