The inlay reminds me of Harvey Ellis pieces made when he worked with Stickley. I haven’t seen this chair style before. Any clues on underside of chair? Would you add a pic to show the joint construction please.

Thank you for the feedback. a few more pics added. Fourth picture is not a crack, but wood joint.

The upholstery looks new and looks like polyester. Of course, from a pic, it's hard to tell. You can remove the cloth on the bottom of the chair and see if there are any markings. That was an expensive chair, so when it was originally upholstered, it did not have straw. Older chairs had horsehair, but that was always covered with cotton or polyester batting. Horsehair is now quite expensive, so I've see straw used. If the straw had been there for a while, it would have softened.

Beautiful chair! But not "antique". Lovely inlay in mahogany chair, likely the fabric is cotton and perhaps the stuffing may be 1960's foam rubber gone south.

Hard to say actual age as it's not typical of any period and well could be "in the style of".

In my opinion the fabric is very appropriate to the chair and beautifully done. Look at how perfectly the stripes line up!

If I had to put a name to the style, I would call it "regency".