Sorry I'm sold
This hat pin was made by Charles Horner and it carries full nine carat gold Chester hallmarks, the Horner CH logo and the date code for the early 1900s but fairly unreadable.
The finial is just over ½ inch across and in first class condition. The long pin has been cut short or worn away and this piece is 2¾ inches top to base in total.
Item no: 420-16