Rare Antique Oval Shaped Slate with Carved Walnut FrameI've bought and sold and otherwise admired a lot of antique slates, but never have I come across one with a rounded corner frame like this one, hand carved of walnut, I believe, in two parts joined by interlocking wooden pins. Since finding this one I've hunted around online and found just a couple of images of other 19th c round ish slates, but none with frames joined in quite this way. To my eye it's extraordinary beautiful, and all the better for