Not a bad buy , matty77 .
Looks to have been refinished & repaired (kind of a marginal repair , with the steel 90 degree 'braces' on the base of your chair) .
I'd guess 1890's-1910's .... however , when you take on the upolstering project (check out the 'projects' section of the forum for more info) , you may find patent dates on the spring-retainer hardware .
Looks like a good candidate for checking the tightness of the glued joints & any such repairs that will/might be done , while re-up-ing the item !