Not my Bach, though I wish it were.  This is a nice little bit of Horn Porn from the TrumpetMaster forums..

"My Bach cornet has the "Stradivarius Deluxe" engraving which is (was?) available from Bach on special order. Sherry Huntley of Artistic Engraving did this for me…I believe she was once the master engraver for Bach, hence the "authentic" design on the horn. The pictures don’t really do it justice."