Photo
from Marudhar Arts, sale 22, lot 159. They wrote: Aurangzeb's Shahjahanabad
coin is usually found in Badre Munir couplet, while
this one is issued in his full name and title which is very rare to find and
very few specimen are known. But this particular specimen has Regnal year '2'
engraved over 'Ahd' which to the auctioneer's knowledge is the first piece
known.
It can possibly have 2 explanations.
First Aurangzeb had 3 coronations, and the second the year changes and die is
not worn out so instead of making a new reverse die, the engraver engraves 2
over Ahd in the same die.