In 1989, IBM contributed PostScript versions of the basic IBM Courier family to the X Consortium. These original files are still available and can be freely downloaded, but they can be hard to find. So I tracked them down and wrote a script to convert them into a new package of OTFs, TTFs, and webfonts.
$ ./build.sh
$ ls dist/*.zip
dist/Courier.zipSee COPYRIGHT.IBM.
All questions regarding this software should be directed at the Xorg mailing list:
https://lists.x.org/mailman/listinfo/xorg
The primary development code repository can be found at:
https://gitlab.freedesktop.org/xorg/font/ibm-type1
Please submit bug reports and requests to merge patches there.
For patch submission instructions, see:
https://www.x.org/wiki/Development/Documentation/SubmittingPatches