Seldom seen in AU or above! 

1891-O VAM-3A1 O Tilted Right, Clashed Obverse O, Reverse Weak ER

This coin is a Hot 50 Morgan VAM.
3A1(revised) III21 · C3b (O Tilted Right, Clashed Obverse O, Reverse Weak ER) (181) I-3 R-6
Obverse III21– Strongly clashed die with partial incuse O of O mint mark from reverse showing above right wheat leaf.
Reverse C3b– Strongly clashed die with partial raised E from obverse LIBERTY below eagle’s tail feathers on left side. Upper part of vertical bar and middle serif of E shows and tip of R shows to right of E next to tail feathers.