What manufactories of _porcelain_ were established in Holland?
When, by whom, and at what places were they established, and when did
they cease to exist?
What marks were used to indicate the different manufactories, and had
the manufactures any distinctive character?
The mark M. O. L. is frequently found on Dutch porcelain, and
occasionally the word Amstel; what is the meaning of these marks, and
when were they employed?
A stork is also found as a mark on Dutch porcelain, which is said to
have been made at the Hague. Is this correct? and if so, what is the
history of the manufactory?
Was any porcelain made at Arnheim? and if so, what was the
distinguishing mark?