Thanks for the pic--it's just beautiful. I suppose you are right about the grade being fair as far as numbers go.
But it's the coin and not the holder we're interested in, right?
I know you weren't exactly asking for estimates of value rather estimates of scarcity, however, the two go hand-in-hand, don't they? The Eliasberg pincer 8's in MS-65 (NGC) sold for just over $6600 two years ago. The last non-1818/7 MS-63 1818 Bust Half in Heritage's records was an ICG MS-63, which sold for $3335. The "pincer 8's" variety was not included in the astoundingly large Queller collection sale by Stack's in 2002. Maybe I was a little high on my high end, but I wouldn't insure it for less than $6000, because where are you going to find a replacement? Unless someone else has better information, yours is tied for 3rd finest known. I'd say that makes it pretty special. The fact that it made me spend half-an-hour looking all this stuff up should tell you something as well...
