(Helen) I am not at all clear that this alto was made by MK. The key guards are way more modern than anything I have seen from him before. 

They only thing that says "Max Keilwerth" is the Pure Tone Trade Mark MP that would have come with a MK saxophone. 

I wonder if this may not have been a JK-made or inspired horn. Or something made through Heimarbeit? 

Hopefully we will find more of this brand in the future and the origin of this horn will be answered. 

The ad reads:

Verkaufe:
gebrauchtes Tenor Saxophon von Triumpf bei Keilwerth ohne Seriennummer

- Spielbereit vor nicht allzu langer Zeit überholt worden
- Alle Klappen leicht beweglich und gut spielbar
- S-Bogen mit Feinstimmer
- normale Geruchsspuren
-besondere Gravur: von Herrn Reichel " Die Frauengestalt"
- Koffer
- Rest Siehe Bilder

Privatverkauf (keine Rücknahme oder Garantie)
Bei Fragen bitte vor Gebotsabgabe kontaktieren

Nickel Plate

(Helen) I am not 100% sure this is an M.K. horn. However, this is as good a place as any to put it for now. I will need to do some digging and see if I can find some info on the name.