fragments of the pyramidion

Lahun,
the pyramid complex of Senusret II

fragments from the pyramidion (selection) - click on the pictures

Some other pyramidia of the Middle Kingdom (about 2025-1700 BC):

Arnold 1987: pl. 38-39 (the pyramidion of Amenemhat III; inscriptions in drawings)
Jéquier 1933: 20-26, figs. 16-20 (the pyramidion of king Khendjer)
Maspero 1902 (the pyramidion of Amenemhat III, inscriptions in type set hieroglyphs; one photo)