Ships USPS / Insurance

This is a F M Warranted Aluminium 18s 20l Double Hunter Key Wind Pocket Watch Case 57mm. Seems to be for an 18s or 20 ligne size movement, front movement opening measures 45.68mm. Case has wear and is missing the crystal. Opening works well and hinges seem to be in good condition. Brand may be Frank Moss. Came from a watchmaker's estate. See photos for full condition details and further description. Thanks For Looking!