I am not a expert . So I went Pcgs and found this should help. http://www.coinfacts.com/large_cent...ents/1818_large_cents/1818_large_cent_n10.htm
The circular obverse crack through the stars is almost diagnostic of the N-10. N-8 also has a similar crack through the stars but they are not quite as extensive and the N-8 has the crack through the outer points of the stars above the head. On N-10 they are through the inner points like on yours.