We obtained this 1964 Kennedy half dollar in key chain bezel with key ring from a coin dealer.
The coin is ungraded and likely inserted into the bezel by the key ring manufacture and sold as a Swank brand. The bezel is permanently closed. The key chain ring appears to be in the origianal package; images show the current condition of the box, coin, and key chain ring. The mint mark is D. The metal type for ring, chain, and bezel is unidentified and un-marked.
The images show current condition as much as possible. On the obverse there are small black marks on Kennedy's hair; they appear to be superficial. Images are from direct photography of the actual item for sale.
Diameter of bezel: about 31 mm
Diameter of key ring: about 25 mm
Total length of bezel and key ring: about 10 mm
Total weight of key ring and coin: about 19.6 grams