900 series logo engraved
Tone hole with soldered ring design (900 only)
New anniversary edition deluxe engraved on bell
Two Shaft Key For Stable C, Bb, B Key
The Pearl shell button
The octave key with “W” logo
The joint ring with “W” logo
Germany Registered Trademarks Series Number engraved
The arc round octave key thumb holder, it to be better handling and good action