Flag of the President of the United States used from July 4, 1959 to  July 4, 1960, which had 49 stars in the circle.  It was defined in s:Executive Order 10823.  The design was the same as the 1945 flag, except with a 49th star added after Alaska was admitted as a state.  The following year, after Hawaii was admitted, the design was changed again to add a 50th star, which is the still the presidential flag today.
Alteration of File:Standard Of The President Of The United States Of America.svg, including some of the changes I made to it, with the stars redone per the 1959 spec.
U.S. Government