(swastika) 1984 Futharc A Handbook of Rune Magic. Edred Thorsson, Samuel Weiser Inc, 0-87728-548-9, page 6.
The most common of these is the Thorshamarr (the hammer of Thorr) or fylfot.
(swastika) 1993 The Elements of the Runes, Bernard King, Element, →ISBN, page 91.
H.R. Ellis Davidson puts up an acceptable case for identifying the swastika with Thor's hammer, while admitting the swastika to be the older of the two signs.