|From the Official Brief History, 89th Division, U. S. A.:
"The sleeve insignia consists of a black 'W'
in a black circle. It was selected after careful consideration and has
a meaning which is as follows:
The division comes from the Middle West, and
its insignia indicates its Western origin and all-around efficiency; inverted
it indicates the Middle part of the name; on its side it indicates 'sigma,'
the symbol of summation, that is, cooridination or single effort. Moreover
the circle is that geometrical figure which can come to stability in any
position, yet move rapidly in answer to a change of forces. In the lower
part of the 'W' is placed the color of the branch of service, such as blue
for Infantry, etc. Ultimately, a darker blue was indicated for the 177th
Infantry Brigade, and a lighter blue for the 178th Infantry Brigade. Certain
regiments, as 353d Infantry, with its Kansas sunflower, and the 341th Field
Artillery with its 'C' for Colorado, still further have a distinct identification.
Later when the rating system upon the comparative results obtained in the
monthly inspections was adopted the best company or battery had the privilege
of inlaying in white in the lower left hand segment of the circle, the
best battalion the next segment and so on for the next two segments for
the best regiment or brigade. Thus a perfect score for an organization
would give each segment surrounding the designation of the branch of service,
a white inlay."