Helix of Ionian capital from the Temple of Athena Nike.
Of the temple of Victory
INWOOD, Henry William. The Erechtheion at Athens. Fragments of Athenian Architecture and a few Remains in Attica Megara and Epirus, Illustrated with outline plates and a descriptive historical view combining also under the divisions Cadmeia Homeros and Herodotos the origin of Temples and of Grecian Art of the periods preceding, London, James Carpenter and Son, Josiah Taylor, Priestley and Weale, M.DCCC.XXVII [=1827].
Art and antiquities
Hellenic Library - Alexander S. Onassis Public Benefit Foundation