Baltimore’s Department of Transportation maintains hundreds of yellow wooden boxes with salt strategically placed throughout the city to let Baltimoreans treat sidewalks during snow and ice storms. A fixture of Baltimore neighborhoods since at least the late 1950s, most boxes have SALT BOX in black block letters of various font styles stenciled on them. Exposure to the elements and the corrosive nature of salt give the boxes a weathered patina. Some boxes stick around all year while others disappear in the Spring and reappear in the Fall; maybe in the same place, maybe not.