how much would my coin cost

[Guest conork]

hi, i came across a guinne dating back from 1760, the head on the coin is george the second and the coin is in mint condition, how much do you think my coin would cost ???

[Chris Perkins 228]

I think you mean a 'Guinea'. Can you post a picture as the condition is the most important factor and whenever anyone that clearly isn't an experienced coin person says 'mint condition' I never believe them, because a truly mint condition 1760 Guinea would be pretty rare. Nothing personal. Also, confirm the diameter in mm.