Original 1910 12" Dayton Tab Base Desk Fan.  This example still retains a really nice original finish that is 108 years old.  The cast iron tab base is a very desirable feature of this fan.  This fan is built so solid!!!  In assessing the fan, the guard may be newer production but cannot guarantee.  The fan runs excellent on 3 speeds.  As you can see from a photo below, the switch has a crack in the body but it doesn't affect how it works.  A very nice collectible fan!!!