Columbia Grafanola Table Top Record Player Circa 1920

Another piece from cleaning out the old family home. I was going to let someone else have it but it ended up here.
This is a windup record player with an internal horn. One opens the slats to increase or decrease the volume using the knob on the right hand side.
There are no model number markings that I can find so I am having a hard time placing the time. The Grafonola were made from about 1907 into the 1930s.
There is a speed control that you adjust until it sounds right. It does not have settings for various speeds.
It came with some 10" 78 records and works well. Although it takes a lot of cranking.