The ones in the case with blue fabric lining appear to be authentic B12s, but the ones in the cases with black fabric lining and two barrels are fakes.
There isn't to my knowledge a Buffet B16 - there's the B10, B12 and B13 (with LH Ab/Eb lever), but no B16 according to Buffet catalogues.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.