PCGS Population (all die varieties of the issue): just 2; 1 finer in MS-66 RB. The two MS-66 BNs listed at PCGS actually represent the same coin -- the Cardinal Collection specimen offered here. (The insert for the other grading event, OGH #3195326, has not been returned to PCGS, which fact we have confirmed through visual verification of that insert.) There are no 1796 Liberty Cap cents certified finer than MS-65 BN at NGC.
From the Cardinal Collection Educational Foundation.