Set with Nephthys
New Kingdom, Reign of Ramses II, (1279BCE-1213BCE)
But there's a mystery, the 'official' museum photo has Set on the left, rather than the right:


From Louvre, Paris, E 3374,
Height:17 cm


The question is solved with this photo, which features readable text:
"Il est le trés puissant maître des déserts, des montagnes et des pays étrangers, le seigneur des orages..."
(He is the very powerful master of deserts, mountains and foreign countries, the lord of thunderstorms...")
Top photo and this photo © J. Chen

According to TeVelde, we know this is Nephthys because her name is inscribed on the back. Why is she so much smaller than Set? The typical answer given is because she was seen as having lesser importance. But it simply could be that's all the bigger piece of stone the sculptor had, and he'd rather put her in than not have her.

Here's another photo:


From insecula.com