The Strygosi coins are much more straightforward. The early coins from when the city was Mourkhain are largely dedicated to its ruler Kadon, bearing one of his face, his pyramid, or his crown. The only exception are ones bearing a different face entirely, its eyes closed and its features seeming more Arabyan than northern, which you spend some time puzzling over. When Ushoran claimed the city the coinage increased substantially in quality and started using a regnal calendar, which is extremely straightforward with an immortal ruler. It gets somewhat tedious to see the same fanged face on every single coin, so it's the silver coins that capture your attention, bearing the banners of various Orc tribes and Waaaghs and the year they were defeated. There's a lot of different victories commemorated. You feel a new appreciation for how incredibly difficult it must have been to build a civilization in the Badlands.
The Nehekharan coins are easily the most varied. Nehekhara was a land of city-states and each of them minted their own coins in glory of their rulers and their Gods, which means that even though there's only really a representation of the Fourth, Fifth, and Sixth Dynaties, there's still a dizzying array of coins to catalogue, dating from Lahmizzar to Alcadizzar. That last one causes an itch of familiarity at the back of your mind and it takes you some time to realize why, and upon comparing the Nehekharan coins depicting Alcadizzar to the Mourkhainian ones with the unknown face, you find they're as identical as the quality of the coinage could reasonably permit. What few historical records there are agree that Mourkhain was founded by the Lodringen tribe, so why were they commemorating a Nehekharan King on their coinage? Did they take in Nehekharan refugees? Did Alcadizzar escape the fate of his homeland and spend time in Mourkhain? You put the matter aside as something to investigate in the unlikely event you ever have more time than you have things to do.