Unable to identify the monogram letters and makers mark. I’d love to know if you know, Thanks. Acid tests as 10k. The product is an antique 10K gold thimble from the pre-1930 era, featuring intricate flower work and a monogram maker mark. This thimble is a valuable piece of history, showcasing the craftsmanship and quality of the time period. The gold material adds a touch of luxury and durability to this sewing accessory, making it a unique and collectible item for enthusiasts of antiques and sewing memorabilia.