Here is a scarce early version of the protective felt bag for a Zenith Royal 500 radio. These early bags were offered during the production of the first hand wired Royal 500s. They are distinctive by their black stitching (vs silver stitching) and a ribbon drawstring. This will match with your early hand wired radio. It was offered as an option to help protect the radio from scratches and staining while the radio is being stored in the leather carrying case. This bag is in good condition with no splits or tears or odors.