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"This brooch is an interesting combination of Nouveau and Edwardian styles, and is remarkably similar to a couple pieces by Whiteside &amp; Blank that we\u2019ve seen; however it is unsigned. The pin consists of a framework enameled in very pale green, in a formal Edwardian key pattern. In the middle is a sprig of leaves with a pearl berry; the stem twines around the framework in back, in a Nouveau style. There are 3 additional pearls set on the frame. It is marked (and tested at) 10k on the C-clasp. There is a little enamel loss, otherwise in very good condition. Circa 1905.  The photos are part of the description, so please examine them carefully. Thanks! Shipping, handling &amp; insurance within the USA included."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.trocadero.com/stores/periodpieces/items/1338083/WHITESIDE-BLANK-Gold-Enameled-Pin>