The following information was kindly made available to me by Bridgitte Conrad of HohnerMusikinstrumente.(I contacted her at bconrad@hohner.de).She informed me that the company had little or no information regarding their manufacture of saxophones but she did send me an article on the subject (in German).I have been able to extract some information from the article but have insufficient knowledge of German to be able to decipher it completely, or to identify the source.So far the table of serial numbers seems to check out satisfactorily.
The Best Value Accordion Made in Germany Weltmeister accordions are hand made in Klingenthal, Germany and well known for their quality throughout the world. Accordions consisting of approximately 2,500 components are built in about 5,000 mainly handcrafted work processes. The company has over 150 years of tradition and experience. I've come across an old Hohner Corona II three-row button accordion in D-A-G. I'm interested in finding out more about it - where are the serial numbers placed on these instruments? I've looked on the outside and also inside the bellows area. The outside has a 'Made in Germany' stamp under the keyboard, but that's all I can find.
The results together with some other research are summarized below.Please feel free to use whatever information you need for your site.
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Hohner “President”Saxophones
Hohner (1857–2007), well known for the manufacture of accordions and harmonicas, manufactured in Trossingen from 1949 to 1972 a range of Hohner “President” badged alto and tenor saxophones under the direction of Max Keilwerth (1898-1968).Other sources set the period of manufacture as 1948 to 1967; however the table below suggests that production in some form or other continued well after Max Kielwerth’s demise.
Much of the early data regarding the Keilwerth brothers Max and Julius (Julius being the elder of the two) is disjointed.Suffice it to say that apart from an indication that Max learnt his early skills within some form of local or ‘cottage’ industry, and subsequently joined at least Franz Than Graslitz/Sudetenland, F.X. HüllerGraslitzer and Amati as well as the Keilwerthcompanie/s.
It appears that Julius, his son Joseph and grandson Gerhart didn’t hold formal craftsmanship papers (Meisterbrief)as didMax.Max Kielwerth commenced at Hohner some time in the 1940’s however there are no records of the production for the factory and the information below is a compilation from various sources; the data supplied by Bridgitte Conrad being main source.
A common feature of the Hohners is the Patented ‘Double Socket’ and knurled screw for attachment of the neck.
YearSerial NumberTone HoleStamp
19491SolderedHohner
1950500SolderedHohner
19511000SolderedHohner
19521800SolderedHohner
19532600Flanged/RolledHohner
19543400Flanged/RolledHohner
19554200Flanged/RolledHohner
19565000Flanged/RolledHohner
19576000Flanged/RolledHohner
19587000Flanged/RolledHohner
19598000Flanged/RolledHohner
19609000Flanged/RolledHohner
196110000Flanged/RolledHarmonica Mannequin
Hohner Accordion Serial Number Location
196211000Flanged/RolledHarmonica Mannequin
196312000Straight/CutHarmonica Mannequin
196413000Straight/CutHarmonica Mannequin
196513500Straight/CutHarmonica Mannequin
196614000Straight/CutHarmonica Mannequin
196714500Straight/CutHarmonica Mannequin
196814800Straight/CutHarmonica Mannequin
196915200Straight/CutHarmonica Mannequin
197015600Straight/CutHarmonica Mannequin
197115800Straight/CutHarmonica Mannequin
197216000Straight/CutHarmonica Mannequin
Hohner Concertina Accordion
HohnerMannequin