I'm on the quest to reforge Gauldur's Amulet but can't get past the door in Reachwater Rock cave. I got the Emerald Dragon Claw from corpse but matching symbols on door does nothing. I've noticed the serpent symbol on claw is inverted in relation to one on inner ring, but am not sure if that is factor or not. I even spent time trying to dragonsprint to chest opposite the door on ledge hoping it would contain something to help, but no dice. Any help would be appreciated...

Is it the first door or the second? The second puzzle door uses the ivory claw, not the emerald.