Defacement (flag)
Addition of a symbol or charge to a flag / From Wikipedia, the free encyclopedia
In vexillology, defacement is the addition of a symbol or charge to a flag.[1][2][3] For example, the New Zealand flag is the British Blue Ensign defaced with a Southern Cross in the fly.
Not to be confused with Flag desecration.
In the context of vexillology, the word "deface" carries no negative connotations, in contrast to general usage. It simply indicates a differentiation of the flag from that of another owner by addition of elements. For example, many state flags are formed by defacing the national flag with a coat of arms.