Thread: Sparton AF R?
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Old 03-31-2013, 10:55 PM   #8
DavidG
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Join Date: May 2010
Location: southeastern Michigan
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Default Re: Sparton AF R?

Jim,

I need new glasses! Your horn is the earliest version with the locating notch at the top rather than at the side and no patent plate on the back cover. It is still a model BF horn, however (see page 6-28). A model AF horn was used on Model As.

At one time quite awhile ago, someone in New England reproduced the patent plate for the first version of the model BF horn as shown in the first column of page 6-28, but I've not seen any reference to one being available in recent years.
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