hand flag

Eh looked at Carl's Red Hand flag.

Traditionally, the dancers wave hand flags in the finale to spell "God Save the Queen" in semaphore code.

Statutory Rule 2000 No. 347 The Northern Ireland flag was previously the former Governmental Northern Ireland banner (also known as the "Ulster Banner" or "Red Hand Flag").

The former Northern Ireland flag, also known as the "Ulster Banner" or "Red Hand Flag", is a banner derived from the coat of arms of the Government of Northern Ireland until 1972.

The flag is also sometimes referred to as the "Red Hand Flag", "the Flag of Northern Ireland", the "Northern Ireland flag" or as the "Ulster Flag" (not to be confused with the provincial Flag of Ulster).

Information from Henri Goybet's website Famille du chevalier Henri Goybet verified by Wikipedia France, great grand son of Mariano, who wrote all the six French Wikipedia article on Goybet family and participated in an hand flag episode on PBS.