Friderich-1413; Dav-2792; KM-77. Tied with one other piece for finest graded at NGC with none seen so far at PCGS. Struck to commemorate the 50th Year of Reign. Armored bust right. Reverse: Flaming altar. Even medium gray tone over immaculate surfaces, with glossy prooflike fields within the protected areas of the peripheral legends. A spectacular example of the issue, and a coin sure to enhance the collection it joins. NGC MS-64.