This is a New Old Stock (NOS) starter ring gear made by Ducellier, dimensions 10x13x12mm, part number 200876. It's meant for older French cars – think classic Peugeots, Citroëns, Renaults, etc. The part itself is brand new and never used, but it's been sitting in storage for years, so the packaging might be a bit dusty or worn, and there could be some surface oxidation on the metal. That's totally normal for NOS parts and doesn't affect functionality. Perfect for restoring a vintage French vehicle where original parts are hard to find. Clean it up, press it onto your flywheel, and you're back in business. A genuine piece of automotive history, ready for a second life.