Watch List notes:

India. Nawabs of Bengal – Alivardi Khan (1740 – 1756), silver rupee in the name of Ahmad Shah Bahadur, Murshidabad mint, RY2, cinquefoil mint mark on reverse. RY2 of Ahmad Shah Bahadur began on 8 April (Julian) 1749. This year was a crucial year for the relationship between Alivardi Khan and Raghoji Bhosle, the Maratha general and ruler of Nagpur. The animosity between the two had come to a head in this year and Raghoji, taking advantage of the rift between the Nawab and his courtiers like Mir Habib the governor of Orissa, managed to impose a heavy tribute on him. Negotiations continued for two years and in 1752 a treaty was signed between the Nawab and the Marathas in which the Nawab agreed to pay 15 lac rupees as annual tribute.
The coins of Ahmad Shah of Murshidabad mint show a small four-pointed mark on obverse
in second line of inscription. It has been suggested that this mark probably has some connection with the dealings between the Nawabs and the Marathas, as from RY3 it is replaced with a sunburst emblem. However this is open for interpretation and by no means a conclusive observation. Extra Fine+, Very Scarce