A redrawn and slightly schematized version of a symbol found on the Snoldelev Stone.  Three horns are interlaced in a pattern (with 3-fold rotational symmetry) similar to incomplete Borromean rings.  See Image:Three-Crescents-Diane-Poitiers.png for discussion of other symbols with a similar pattern of interlacing.
Own work -- SVG version of Image:Snoldelev-three-interlaced-horns.png .
Converted from the following PostScript code:

%!
1.75 setlinewidth
300 396 translate
-60 rotate
/horn{
60 -75.92 translate
0 0 150 154.353 202.5 arc 
-40.503 -37.894 100 191.25 129.71 arcn
stroke
-40.503 -37.894 100 41.175 22.5 arcn
0 0 150 10 117.71 arc 
stroke
1 setlinejoin
-40.503 -37.894 100 69.738 78.738 arc
-60 75.92 lineto
stroke
0 setlinejoin
/c 1.02637 def
47.078 10.374 moveto 95.836 c mul 25.673 c mul rlineto stroke
}def
gsave
horn
grestore
gsave
120 rotate
horn
grestore
gsave
240 rotate
horn
grestore
showpage
%EOF
AnonMoos