"Artistic transformation of a symbol: the sacred benben-stone of Heliopolis. (1) Hypothetical original sacred stone. (2) Early depictions as hieroglyphs in the Pyramid Texts (Pyr 1652b, 2069a). Artists preferred to give it a symmetrical, geometric shape, creating two traditions, one of flattened rectangular section with a rounded top (3-6), and another of square section and with a pointed top (7-10).
(3) Rounded-topped stela from Hierankonpolis temple, height 6m, after J.E. Quibell and F.W. Green, Hierankonpolis II, London 1902, Pl. LXVII. (4) Writing of benben-stone in the tomb of Meryra at El-Amarna, 18th dynasty, after LD III, 97e. (5) Depiction of a benben-stone erected in a sun-temple at El-Amarna, tomb of Meryra, after N. de G. Davies, The rock tombs of El Amarna I, London, 1903, Pl. XXXIII. (6) Granite standing stone at Abgig, Fayum, erected by Senusret I, 12th dynasty, height 12.62m, afeter LD II, 119. (7) Profile, partially restored from ancient depictions, of the central feature of the 5th dyansty sun temples at Abu Ghurab. (8)Writing of benben-stone on an inscription from El-Amarna, after J.D.S. Pendlebury, The city of Akhenaten III, London, 1951, Pl. CIII. (9) Top of a pyramidion from the top of the pyramid of king Khendjer of the 13th dynasty at Sakkara. On it is carved the winged disk of the sun. After G. Jéquier, Deux pyramides du moyen empire, Cairo 1933, Fig. 17. (10) Granite obelisk of Senusret I at Helipolis itself, height 10.4 m, after LD II, 118h." Da: Barry J. Kemp, Ancient Egypt: Anatomy of a Civilization, Routledge, 2006 (Fig. 48)