crwdns2934241:0crwdne2934241:0 d828

crwdns2934249:0crwdne2934249:0:

That worked!  There was a notch where the dial was that I had to line up and then it took a lot of  pressure around the outer edge of the metal back but I heard a few clicks as I pressed very hard around it.

crwdns2915684:0crwdne2915684:0:

open