This competition was sponsored by "The Gramophone" magazine, and took place in the Steinway Hall (London) on 14th June 1924, i.e. well before EMG's adoption of the large external horn.soundgen wrote:Orchorosol beats EMG , Three Muses , Sonora and Algraphone !
http://www.exacteditions.com/read/gramo ... 3610/21/3/
Their second placed machine was an internal horn "Magnaphone", renamed "EMG" soon afterwards as a result of legal threats from the National Gramophone Company, owners of the "Magnophone" trade name.