You see four different "Shamsa" patterns from the covers of the Holy Korans.

"Shamsa" is used in the Holy Korans also to show some informations to the readers.

Here "Shamsa" is indicating the part number of the Holy Koran.

Here "Shamsa" is indicating the beginning of the last quarter of the part.

This "Shamsa" is from the first page of a Holy Koran. There are Koran verses inside of it.