Excellent reply and I thank you for your input here.

But it begs one question? What evidence is there that
the 141602 s/n was in fact reissued?

It would indicate that the 58-265 airframe was purchased
outright by Westland and that these funds were allocated
to the 58-444 airframe, hence the same BuNo. Just
speculation based on how the US numbering system works.