If he's right, it's a great discovery that no one else knew about! Lacking a denomination, with a bust that might be Washington, legends including the words "Portsmouth" and "Philanthropist" and a date after the new Constitution deprived states like New Hampshire and Virginia (which each had a city named Portsmouth) of the power to coin money - it is clearly a medal or token, not a coin. According to the Library of Congress, a half-century earlier there was briefly a newspaper in New Hampshire known as the"Washingtonian and Philanthropist", but there doesn't seem to be any connection.
Conder Token, Portsmouth 1/2 Penny. http://en.wikipedia.org/wiki/Conder_Tokens http://www.coinsandstamps.com/forei...oucester/british_condor_tokens__glouceste.htm
In the second link provided above, an "almost uncirculated" version of this token is selling for $50. Yours appears to be in much worse condition than that. So, the value is somewhat less than $50. How much less, I cannot say, but I'd think someone would pay $20 for it anyway.
question answered, the second link has a uncirculated value of 50.00$ so this one is prolly worth 10$ give or take.
If anyone was interested in buying one of these tokens, I found one on ebay that is in much better shape then mine. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=330366649756&Category=3396&_trkparms=algo%3DLVI%26its%3DI%26otn%3D1