I'd say it's a S-91 too. The leaves by the A in America match S-91 and not S-87. http://www.coinfacts.com/large_cent...ents/1796_large_cents/1796_large_cent_s91.htm
Ther are only two obv dies for the 96 caps where the 1 is away from the hair S-83 and S-91. On S-83 the 6 is almost right up against the bust. On this coin it is well away. S-91.