This is from a Dyn 12 lintel. It shows Senusret III enthroned as king of Upper and Lower Egypt, beneath the winged sun disk

Standing before the king as king of Upper Egypt on the right, is the Seth animal on a standard, and on the left, the Horus falcon on a standard before the king as king of Lower Egypt

These represent Horus and Seth giving offerings to the king. They hold before the king 'the rib of palm branch' (M4), the ideogram for 'year' and 'young'. Beneath the other arm are the 'shen-ring' and 'tadpole' (hundred-thousands), signs, that together with the 'year' / 'young' sign perhaps convey the meaning of granting the king eternal vigorous youth over hundred-thousands cycles.

Under the Dyn 3 pyramid of Netjerikhet, the ankh and was-staff with similar arms holding a fan behind the king, are depicted.

CT