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William Edward Gedge (1874) Patent for 'Solar Compasses', front cover. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 1. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 2. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 3. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 4. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 5. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 6. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 7. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 8. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', page 9. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', spec 1. 2588.
William Edward Gedge (1874) Patent for 'Solar Compasses', spec 2. 2588.