The uncertain rebellion is for this coin:
https://www.zeno.ru/showphoto.php?photo=194332
The coin has a name and a date on it, although it does not specify the mint, which is unusual for rebel coinage (as, for the most part, the mint is the city which the rebellion took place). So… this is Mas'ud III's rebellion at an uncertain city which he would have taken over for a few months or so.
I am not quite sure on how to name this. The closest thing, based on other issuers in our catalogue, would be "Uncertain Rûm mint"; however, with this being a rebel's coin, it is technically outside the Rûm Sultanate (as that is what they were rebelling against), while still being related to the coins from that Sultanate. It is an odd situation, and I have yet to come across any other coin in a similar situation to this. I am still fine with "Uncertain Rûm mint" mint though (or perhaps that would be "Uncertain Rûm Seljuq mint"). Whatever you think is best. :)