Relief Fragment

This relief fragment I find fascinating because it depicts 5 offering bearers with 4 having names based on Khnum. This is discussed in Egyptian Studies III: Varia Nova. Fischer, Henry George (1996).p.8
The color image below is from The Museum of Mediterranean and Near Eastern Antiquities, Stockholm, Sweden. Fischer states that this relief “apparently” dates to the end of the Old Kingdom. But the data from the museum says First Intermediate? Does anyone have any more information or insights on this relief?
MM 11415