It measures about 10 5/8? It has a floral pattern with an aqua colored rim. The plate is signed J. See "The Dictionary of Minton" by Paul Atterbury and Maureen Barkin, page 260, for a similar examples of his work. It also has H4780 on the back.
There are no chips, cracks, or flea bite marks on it. There are some scratch marks to the paint. Please see the pictures for more details. Tamarack Shack Antiques, 145 N Lake Ave. The item "Vintage Signed J.Colclough Minton H4780 Hand Painted Floral Plate Aqua Rim L2B" is in sale since Tuesday, April 25, 2017. This item is in the category "Pottery & Glass\Pottery & China\China & Dinnerware\Minton". The seller is "meredith411" and is located in Phillips, Wisconsin. This item can be shipped worldwide.