"The American Prohibition Flag", a version of the 48-star United States flag with Christian symbolism, promoted in relation to the U.S. Prohibition Party ca. 1915 under the slogan "A Stainless Flag over a Saloonless Nation" (though not necessarily an official symbol of that party).
Flag design was reproduced in Long May She Wave: A Graphic History of the American Flag by Kit Hinrichs and Delphine Hirasuna (ISBN 1-58008-240-8), pp. 168-169.  Some kind of colored ribbon depicted attached to the flag near its top left in the original source is omitted in this SVG file.
T.P. Flag Co., Pittsburgh Pa. (flag design)
User:AnonMoos (SVG file)