Since I found my old photos I can actually supply a (partial) ring code in the form of images.

http://redump.org/disc/110/

Photos: https://mega.nz/#!KxRDDYyL!PUwfQonw3T5U … qbK6AwAOqA

Hi, do you have the mastering SID code and the last digit/letter of the mould SID? And also the write offset. Otherwise there's no point in adding incomplete ringcodes.