This position is blessed with two strips of 4, but even then it is plagued by the top of the stamp being obscured by bad perf registration.
State 1
State 2
Strip of 4, TC-TF. First thought is that this is a state 1. However, there is the possibility that this is a state 2 by re-entry. Compared to TD a above, the background and face has been strengthened, but the letters look thinner. If correct, it would be a shallow re-entry and would add to the number of states.
I think this matches the example above. Probably an earlier example.
State 3
State 4
AP
May 2019