Dutch marble
A marble pattern executed by dropping a series of
colors, usually yellow, and blue (in that order),
which are then drawn together and intermingled by
means of a comb, so that instead of shells and
veins being produced, the pattern consists of a
series of small, sharp scallops.
The Dutch marble is a pattern that has been used
frequently in blankbook binding from the early
19th century to the present day.