WWI Commemorative Bracelet of Battles of the Marne

WWI Bracelet

I have a World War I commemorative bracelet showing 5 battles of the Marne with Iron Cross with crossed swords links between the battle links. I can find lots of information on WWII memorabilia but haven't been able to find out much about this item from WWI. Who can I contact to find out about appraisal and selling of this historic bracelet?