the section is mainly focus on rolex bubbleback with different case shape examples, empire, athlete, army, kings of wing, lifesaver, hooded( ribged, scallop, plain, steellines etc), non oyster, square etc.
examples show in the pictures are very rare athlete, hooded( Bill Shaine collection), normal shape bb, NFS.
scarce "copper dial" lifesaver 3348
this version of smooth large bezel lifesaver is the most difficult bb variant to come by along some other models, this is a 29mm boy size bb, it has its nick name as the bezel resembly the "life safer" float, it has unique bezel constraction, unlike the common medium size bb, and it has a 2nd series auto rotor movement, this is a rare bird, interesting watch into your bb collection.