1791 Sierra Lone 1 penny Km2.2 Proof 64.
Can anybody tell me the fair value of this coin? I am lost with NGC grading vs values/prices.
http://ww.ebay.co.uk/itm/1791-Sierra-Leone-Company-One-Penny-NGC-PF-64-BN-Superb-Proof-Example-/181651195227
Is $895 the right/fair price for this?