Wiener Keramik - Cup - Porcelain

According to my research, this is a very, very antique piece, produced between 1750 and 1800.
It could have been made by Josef Drechsler or Josef Prechler, who worked for the royal household.
I would describe its condition as reasonably good for its age, gilded, with black specks inside the glaze.
Since I have never owned such an antique before, I wouldn’t know how to describe it any better, so please examine the photos closely!
It could be that the handle at the lower part has a tiny crack; it doesn't appear broken or anything, perhaps it was bumped, but it’s only visible upon closer inspection.
A charming little jewel from a long-vanished era!