This is what I read:
Collectiblend:
CollectiBlend Average Index 
Average Very good Mint
Body only
$580-600 $700-800 $1400-1500
With lens
$1800-1900 $2400-2600 $4400-4600
Estimate value accuracy:
1959. 35mm film, SLR camera. The first Nikon SLR. 64* s/n black models are rare. Black bodies with 66* serial numbers are most likely fake. Bodies with early s/n and early features are more valuable. Right now all 64* sales are listed here notwithstanding the features, so estimate value is not correct. Please do your
due diligence on the
features.
This was the other mention:
Nikon F Collector's And Buyer's Guide
The Nikon F is a user-collectible classic par excellence, but it can also be a great investment if you happen to snag a rare early model. As many Nikon aficionados know, the first 1000 or so Fs had cloth shutter curtains before titanium curtains became available, and these are worth at least a few grand even in this era of bargain-basement 35mm SLRs. Other early F identifiers include a self-timer with slanted serrations and sharp edges, a machined film-wind lever with two hollow cavities on its underside, a prism engraved (not silk screened) "Nippon Kogaku," six patent numbers listed on the back, and "Made In Japan" on the back-closing lock, not on the baseplate near the tripod socket.
Other rare Fs to look for are early black bodies with serial numbers beginning with "64."
Read more at
The Savvy Consumer’s Guide To Pre-Owned, Collectible, And Vintage Cameras; The Legendary Nikon F: What Makes It The Camera Of The Century? Page 2