The author of Girl Guides, and the first Chief Scout of the Boy Scouts Association, was also the man who signed the charter to allow international scouts in which year? 
International Boy Scouts, Troop 1:  The troop's "mixed nationality" charter dated October 30, 1925 was issued after the newly formed International Bureau received approval to directly register such "international" groups at the 3rd World Scout Conference.
i don't know