File:VaticanFlag.png

Summary
Description: The flag of Vatican City. It was adopted on June 7, 1929, the year Pope Pius XI signed the Lateran Treaty with Italy, creating a new independent state governed by the Holy See. The Vatican flag is modeled on the flag of the earlier Papal States.

Source:

Purpose: To illustrate what the flag in question looks like on articles, as well as representing the flag's respective nation/faction in the relevant sections/articles