Following a deletion debate on Commons , we are left with the
problem whether or not Public domain images that are under other
restrictions, such as coats of arms, are allowed under the Foundation
Licensing policy. If I quote Erik Moeller, from another thread  on
the mailing list:
'[...]the licensing policy has been specifically formulated to avoid
that problem. It requires content to be under a Free Content License,
which is defined as "a license which meets the terms of the Definition
of Free Cultural Works _specific to licenses_".[...]'
However, since we are talking about public domain, this does not apply
for this image, since public domain is not a license. This means that
another section of the resolution applies:
'[...] or which is otherwise free as recognized by the 'Definition of
Free Cultural Works' as referenced above.'
Which is not the case, this specific image is under more restrictions;
see the deletion debate for details. Is this analysis correct? Or
should we just treat public domain as a "free content license"?
(cc'd to commons-l)