Flourish of approval
A flourish of approval or curl is a Dutch symbol, analogous to a check mark. It indicates approval, and is mostly used to grade schoolwork.
History
The krul first appeared in the early 19th century together with the rising bureaucracy in the Netherlands.Usage
The symbol is rarely used outside of the NetherlandsDespite its wide usage throughout the country and its former colonies, there is no Unicode symbol for it. Similar to a dele, it may be substituted with the German penny symbol, ₰.