Watch List notes:

A Collection of Coins of the Indian Sultanates (Part I)

Sultans of Bengal, Rukn al-din Kaikaus (689-700h), Tankas (2), Hadrat Laknauti 689h, 690h, from the land tax of Banga, 11.06g/1h, 11.04g/4h (GG B88; ICV 2625) [2]. Second scratched on reverse, otherwise both very fine and scarce £100-£150