The flag of the United Kingdom of Great Britain and Northern Ireland.
Assemble your copy of it out of the small printed paper elements.
Download the original free diagram of it.
This paper model was designed by Kalinin Mikhail.
Height: 4,6 inches (117 mm)
Width: 2 inches (50 mm)
Depth: 2 inches (50 mm)
For A4 paper size.