License terms for daewoo-misc?

It looks like the daewoo-misc fonts are proprietary, the only information in COPYING is:

"Copyright (c) 1987, 1988 Daewoo Electronics Co.,Ltd."

These fonts were first present in X11R5, see the fonts/bdf/misc/hanglg16.bdf file and similar. The COPYING file we use now is from the COPYRIGHT line in the .bdf file, other fonts (e.g. the schumacher ones) seem to have COMMENT: lines to explain the terms. I can't find any other information about license terms for this font, this may be hidden in old mailing lists?

cc @keithp, @kem, @alanc as the old guard, maybe you have any ideas, memories or pointers on where to search.