A rare iron sake cup. While these exist in places like India, this one appears to be of domestic origin. The interior seems to be coated, likely to prevent rust. Diameter: Approximately 6.5cm Height: Approximately 4.7cm Sizes are approximate. The actual item may differ slightly in color from the images. As this is an antique item, there are age-related scratches, marks, and soiling. Please examine the description and images carefully before purchasing.