Cool indeed.
These are sometimes termed "Turner chairs" (also Turners and Turner's with or without a capital 'T'), but they take their name from earlier chairs of this type with bobbin-turned legs/struts. They were very popular in Victorian times, with many copied from a celebrated 17th Century example at Lord Leycester's Hospital in Warwick, England (also known as the "Saxon Chair"). Like this one:
This is a delightful Victorian, Solid Oak, Turners Chair With The Typical Form Triangular Seat, A Very Detailed Shaped Carved Back, Bobbin Style Sloping Arms, Turned Legs And Stretchers. Turner Chairs are easily recognisable due to their shape and beautiful design, standing 86cm high to centre...
www.ebay.co.uk
Yours is in that tradition, obviously less ornate with respect to carving, not as old as Victorian and consequently rather less valuable. I would think it was artisanally produced sometime in the first half of the 1900s and has no more than a mid to low double-digit value.