Besides their own name or trademark, most saxophone companies also sold their instruments under other brand names, these instruments are so-called stencils. F.X. Hüller & Co made these too, throughout the entire saxophone production.
They built stencils for companies like Hammerschmidt, Oskar Oehler and G. Rudolf Uebel or wholesalers like Hess, C.A. Wunderlich, Johannes Adler and Paul Beuscher. Other FXH stencils include the following: the Melody, Varsity, Girlanden, Benny Carter, Regent, ROA  (Robert Oswald Adler), M.M. Masterhand, Queen, Magna, New Star, Gold Star, Zenit, Emperor Virtuose, Broadway. Names like Regent, Magna, Gold Star and the Melody were used by other saxophone companies too.
Wunderlich stencils were mainly made during the MK and 1st period, infact: i've seen a lot more MK period Wunderlichs than World saxophones!
Johannes Adler and many Hammerschmidt Klingsons during the 1st, 2nd and 3rd period. Hess during the late 2nd and 3rd period.
Max Keilwerth built saxophones for Hess, C.A. Wunderlich and Johannes Adler too.
So far i've seen three M.M. Masterhand stencils, all located in Sweden.
It was not uncommon, companies outsourced part of the stencil work to so called ''Fertigmachers''.
Those Fertigmachers worked independently in their own workshops.
Due to the several mystery stencil saxophones, which were assembled with parts from sometimes two or three different companies, i often wonder how the Amati collective actually started in 1945?
Shortly after the war there must have been a great lack of materials, needed to built wind instruments. Could it be they were responsible for those peculiar horns?

first row: pic 1 & 2 G. Rudolf Uebel alto ( late 2nd FXH stencil ) / pic 3 & 4 Herdim tenor ( could this be a 1950's attempt? ) with eyebrow key guards  / pic 5 M.M. Masterhand alto ( early 2nd period FXH stencil )
second row: pic 1 M.M. Masterhand alto ( early 2nd period FXH stencil ) / pic 2 & 3 Magna alto ( early 2nd period FXH stencil ), these were sold in the UK / pic 4 & 5  ROA alto ( 3rd period FXH stencil ) source Tobi 

third row: pic 1 & 2, G. Rudolf Uebel tenor ( 3rd period FXH stencil ), source / pic 3 & 4 Queen alto ( 3rd period FXH stencil ), no G-G# triller key, source / pic 5, the Melody alto ( 1st period FXH stencil ) coll. J.Jonker
fourth and fifth row: both Star and Triumpf tenors were probably build by Julius Keilwerth and might be assembled by a so called ''Fertigmacher'', who used FXH parts ? ( bow guard on the Star, neck and bow guard on the Triumpf ). I've seen a 1939 Tone King solo tenor with the ''JKG best in the world'' stamp which except for the bow guard and engraving was the excact same horn as the Star!
sixth row: Zenit alto ( 3rd period FXH stencil ) source, both the bill and the warrenty card dates the serial number 24378 back to march 1940
seventh row: Benny Carter alto ( late 2nd period FXH stencil )
eight row: Klingson saxophones  were built for Hammerschmidt during the entire FXH saxophone production. All models were stenciled, from "Professional'' to ''World de Luxe''.
Even the very rare extraordinary late 2nd period F.X. Hüller alto was stenciled for Hammerschmidt and called Klingson ( see playing page ).
ninth row: FXH stencils  pic 1 C.A Wunderlich ad source / pic 2 Queen in V. Jörgensen cataloque source Fazination Saxophon cataloque / pic 3 Hammerschmidt ad / pic 4 Paul Beuscher cataloque source Luthier Vents / pic 5 Hess ad

gru1.jpg gru2.jpg herdim1.jpg herdim2.jpg masterhand1.jpg
masterhand2.jpg magna1.jpg magna2.jpg roa1.png roa2.png
gru3.jpg gru4.jpg queen1.jpg queen2.jpg themelody.jpg
star1.jpg star2.jpg star3.jpg star4.jpg star5.jpg
triumpf1.jpg triumpf2.jpg triumpf3.jpg triumpf4.jpg triumpf5.jpg
zenit1.jpg zenit2.jpg zenit3.jpg zenit4.jpg zenit5.jpg
bennycarter1.jpg bennycarter2.jpg bennycarter3.jpg bennycarter4.jpg bennycarter5.jpg
klingson1.jpg klingson2.jpg klingson3.jpg klingson4.jpg klingson5.jpg
c.a.wunderlich.jpg queen.jpg klingson.jpg beuscher.jpg hess.jpg