Ubuntu font package fonts-3270
You can install these fonts by opening a terminal and executing
sudo apt-get install "fonts-3270"
See also: installing software on Ubuntu, installing software on debian, and general fonts-3270 package information.
3270ibm3270 font family with style Normal
3270-Condensed3270 Condensed font family with style Normal
3270-Semi-Condensed3270 Semi-Condensed font family with style Normal