Another Unidentified

Discussion in '400-Day & Atmos' started by kirxklox, Nov 30, 2014.

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  1. kirxklox

    kirxklox Registered User
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    #1 kirxklox, Nov 30, 2014
    Last edited: Nov 30, 2014
  2. John Hubby

    John Hubby Principal Administrator
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    #2 John Hubby, Nov 30, 2014
    Last edited by a moderator: Dec 31, 2017
    Jahresuhren-Fabrik 30-Day Miniature Louvre-style dome clock. Patents for this one are DRGM 588490 granted Jan. 27, 1914 for the clock movement, and DRGM 589622 granted the same date for the 2-Ball pendulum. I have documented this one and the complete miniature Louvre model with both DRGM protection stamps which would have been made between the beginning of 1914 and the beginning of 1918 assuming JUF didn't get a patent extension due to the war. The DRGM was normally valid for three years, with extension for another three on payment of a fee. The German patent office was authorized to grant extensions at no cost to those companies that had patents expiring during the war but were instead making war matériel for the military. GB, Kienzle, and Junghans are known to have received extensions, possibly JUF did as well in which case the expiration could have been as late as the beginning of 1920.

    This model was made to about 1928 with most of the production not having the DRGM stamps, thus from about 1920 to 1928.
     
  3. kirxklox

    kirxklox Registered User
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    Thank you.
     

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