The large flag contained over of fabric, and included 15 stripes and 15 stars, one for each of the 15 states of the union. The stars were made of cotton and the stripes and blue canton were of English wool bunting. Each stripe was wide and each of the stars measured across from tip to tip. The women did much of the work in the evening after the brewery closed, sometimes working until midnight, and Pickersgill delivered the flags to Fort McHenry on August 19, 1813, a full year before the Battle of Baltimore.