Korean text produced before the orthography reforms of early 20th century can contain various archaic Hangul forms. Archaic_and_obsolete_letters Not all fonts will support correct display of these. Three which do are
+NotoCJKkr
+SourceHanSansK
+HCRDotum
A test page which includes these forms and their various combinations can be found here.
+NotoCJKkr
+SourceHanSansK
+HCRDotum
A test page which includes these forms and their various combinations can be found here.