These are NLS translation files for Lynx.
See http://lynx.isc.org/current/
The lynx.po file is the main template; the lynx-2.8.3.pot file
is being distributed by the Translation Project as the Lynx
template file (although it is based on the lynx-2.8.2 release).

For the Translation Project repository of Lynx translation files, see:
http://www.iro.umontreal.ca/contrib/po/HTML/domain-lynx.html