Edward IV or Edward V?

[Mr_Stephen]

Whilst Spinking (again) I note that the only way of telling most Ed 4 halfpennies apart from the Ed 5 halfpenny is via the mintmark. The mm is, obviously, variable amongst the Ed 4s but can only be the half sun and rose for Ed 5. Now, as mine has the mm chunk removed (not my doing! Honest!) can it be definitely stated that it's not an Ed 5, or are there other ways of checking...?

[HistoricCoinage]

No chronology has been determined for the dies of Edward IV/V except the gold, so it is impossible without the mintmark. However, the probability of it being Edward V is minute due to the short issue and the fact that it would have been struck from Edward IV's dies anyway.

[Mr_Stephen]

Clive, cheers for the clarification!