It is not hallmarked, but has been tested, and verified weighing in at 10.7 grams. There are no problems, This item is pre-owned and there will be ordinary and normal use marks.. Comes from a clean, smoke-free home. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva. The item "Phyllis Sklar Vintage Sterling Silver Birds Nest Modernist Pin Brooch LFJ5" is in sale since Sunday, October 27, 2019.This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Other Vintage Jewelry". The seller is "besparkledagain" and is located in Mayfield, Kentucky. This item can be shipped worldwide.