I recently bought a couple of Winbod 27C257 EEPROM's from Ali Express because I need them for a project.
They turned out not to be empty and filled with all kinds of different content. Maybe someone can identify a couple (or all?) and maybe it could be interesting for the archive?
I have named the files with what I could find as readable text within the data but it may or may not be completely accurate of course.
Attached is the ZIP file with the 8 dumps in BIN format.