This vintage decorator’s stencil seems to me to be French-inspired. It reminds me of design you might find incorporated into an iron fence in the French Quarter of New Orleans. With finials, stripes and other decorative elements, this repeating pattern would make a great addition to most any project.
This graphic was included in the February 1, 1888; volume 11 edition of The Decorator and Furnisher magazine.
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.