I'm looking for a stamped brass, center-mount, Federal-style knob with a 2 1/4" diameter backplate. I've tried just about every major supplier (Ball and Ball, Whitechapel, etc.) of period-style brasses with no luck -- 2" seems to be the largest diameter backplate available. If anyone can send me a source for this knob/backplate combo, I'll reward the lucky person with a choice of a free one-year membership at our museum (the Columbia Museum of Art in South Carolina), or a selection of exhibition catalogues from our museum shop (including ones which include period furniture). It must have a 2 1/4" backplate! Thanks! Kevin W. Tucker [log in to unmask] (remove the "*" from my address to reply)