Online Encyclopedia of Western Signs and Ideograms Symbols.com

Symbol 32:1

3208a

32:1 · An ideogram common in Scandinavia in the Viking era. Both this and its mirror image (the same sign, but with a counterclockwise rotation as seen from the centre of the sign) were used on Celtic vessels before the birth of Christ, and in many other areas. There is a structurally similar Mayan hieroglyph, 3208b, but it has six "spokes". What it meant is unknown but it is similar to an Aztec sign meaning day.
    By the seven spokes in this ideogram it can be associated with 2909, the weekday heptagram. 3208a can also be seen as a pictorial sign for a millstone. It is a pictorial sign on cameras indicating minimal aperture.
    Compare it in this use with 2601a for maximal aperture.