"Possibly N.O.S. honda gas tank"

[WisconsinJohn]

Looks to be in real nice shape. I don't know what Honda it fits, but I'm sure someone does.
http://cgi.ebay.com/ebaymotors/HONDA-ATV-GAS-FUEL-TANK-USED-_W0QQcmdZViewItemQQhashZitem35ab84e5fdQQitemZ23051 0880253QQptZMotorcyclesQ5fPartsQ5fAccessories#ht_5 00wt_975

[zagames]

Looks like a 70 to me... Really nice for the price, but I just bought a plastic one ;)

[dcreel]

Looks like an old Honda XR or XL dirtbike tank to me..

yep..

80-81 XL500

http://cgi.ebay.com/ebaymotors/Honda-XL-XL500-XL500S-Used-Gas-Fuel-Tank-1980-1981-IBK-/400128098596?pt=Motorcycles_Parts_Accessories&hash=item5d297e4124

It amazes me the people that sell things on Ebay without even taking 5 minutes to figure out what they go to.

[dksix]

I was thinking late 70's XL, like XL250, XL185 or something along those lines. The mounting tap looks like ones from the XL street/trail line.