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The limit loop is fairly easy to make and replace. It is just a piece of bent metal.
The case is not a model A. The model Bs and onwards had taller cases to allow the spring support of the motor frame.
What type of reproducer does it have? The model type is on the stylus weight: the model C is for two minute records and the model H is for four minute records. Note the model K had a switch to select either the two minute or the four minute stylus. The two minute stylus shape is actually eliptical to improve high frequency response.
Two minute reords were produced from the early 1890's thru to 1912. Four minute wax were from 1908 thru 1912 and Blue Amberol 4 minute records were produced from about November 1912 until 1929. You may play the wax four minute Amberol and the later Blue Amberols with the sapphire four minute stylus.
I suggest you look for the authoritative book on the Edison Phonograph written by the late George Frow. It will explain all!
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