I started collecting these but stopped, I had 3 until last year when I bashed em out on Ebay. It is not actually a jewel but it is an American Watch Fob. It is representative of the original owners degrees, this particular man Mr Codington was a particularly keen Mason . As has been mentioned he was a member of the Ancient & Accepted Scottish Rite, York Rite and the Shrine. I must say that is one of the best examples I've seen especially with the extra fold-outs covering the Teutonic Cross, although it might orginally have had a further dangle on the bottom. You could expect around $200 - $300 US for it on the bay.