Here is Seth Thomas “Style 1 30 Hour Half Column Shelf Clock” that I repaired. There were three styles of this clock, and they are illustrated on my ClockHistory.com website. The style 1 was made from ca. 1850 to ca. 1860. I give more history of these clocks on the following web page: https://clockhistory.com/sethThomas/products/30HourBrassWeight/index.html
This clock is 24 15/16 inches tall and 15 1/8 inches wide. The minute hand is 3.5inches long from center to tip.
Notice the flower and leaf design in each corner. This style of flower and leaf appears on many Seth Thomas dials in the 1850s.
Repair job 6684. I polished the pivots and installed 9 bushings.
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Usually, a no. 3 crank key will fit, but sometimes the size is slightly different.
I am trying to replace the winding key for my Seth Thomas, type one, half column case. I found this site selling keys that look exactly like the original key we had. It is the Ogee key and asks for a size from 00 to 16. Do you know which size goes for my clock?
http://www.clockworks.com/clock-parts/clock-keys.html
This is my clock.
http://clockinfo.com/posts/7051
If you have better suggestions, I would appreciate it.
Thanks for your help.
Jim