  The real projective plan $P^2$ can be endowed with a dianalytic structure
making it into a non orientable Klein surface. Dianalytic self-mappings of that
surface are projections of analytic self-mappings of the Riemann sphere
$\widehat{\mathbb{C}}$. It is known that the only analytic bijective
self-mappings of $\widehat{\mathbb{C}}$ are the Moebius transformations. The
Blaschke products are obtained by multiplying particular Moebius
transformations. They are no longer one-to-one mappings. However, some of these
products can be projected on $P^2$ and they become dianalytic self-mappings of
$P^2$. More exactly, they represent canonical projections of non orientable
branched covering Klein surfaces over $P^2$. This article is devoted to color
visualization of such mappings. The working tool is the technique of
simultaneous continuation we introduced in previous papers.
