It will be
Bickford-Smith, unpublished draft, p. 111, no P P, recording five specimens, which comprise two groups of die duplicates, both
rev. dies with the tribunician number split I - I by Victory's
head, as on your coin. There is not enough room for P P on your coin anyway, and if it were there, one would have to see the bottom of the letters.
B-S p. 112 records three specimens with P P, all with a different
legend split, TR P - II.