This chain is in excellent condition, and it is fully signed "AJ 925S" for Arne Johnson, along with Denmark. The chain is approximately 4mm at its thickest. If you have any questions, don't hesitate to ask, thanks! The item "Vintage ARNE JOHNSON (AJ) DENMARK Sterling Silver Modernist Chain Necklace" is in sale since Sunday, March 15, 2020. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Scandinavian".The seller is "ciresales" and is located in South Hadley, Massachusetts. This item can be shipped worldwide.