An Act amending the act of June 13, 1907 (P. L. 560, No. 373), entitled "An act designating the official flag of the Commonwealth of Pennsylvania, and describing the same; providing for the carrying of such flag by the regiments of the National Guard of Pennsylvania; authorizing the Secretary of the Commonwealth to provide, and have deposited in the office of Secretary of the Commonwealth, a model of said flag, and making an appropriation therefor," requiring the word "Pennsylvania" to appear on the flag of the Commonwealth.