I had only one bottle of Rudesheimer Berg Roseneck Riesling Spatlese
1976, Verwaltung der Staatsweinguter, Eltville. There were no fill or cork issues.The color is bright gold. The bouquet is extremely intense with only moderate old Riesling character. The bouquet and taste remind me of very ripe white peaches with some mixed floral character with mixed spices reminding me of those in pickled peaches, but without any vinegar character. There also was honey. The wine was rather sweet. In most other years, I would bet this wine was an auslese if served blind.
In fact there was so much auslese and above in 1976 that some are rumored to have sold some of their wine entitled to be called auslese as spatlese just so they would have some spatlese to sell. So far as I can determine, this would be quite legal in 1976. There are certain minimum sugar contents, etc that must be met at the various quality levels, but there seems to be no restriction in labeling a wine entitled to be an auslese as a spatlese, since it exceeds the minimum sugar, etc allowed for a spatlese. Of course I have no way to know if that was the case for this wine.