Take it with a pinch of salt! Salt was so valuable then that soldiers were often paid with it -- hence the word "salary." Here is a heavy gauge mural salt box with hinged lid. The box is decorated with two bands of engraved lines, and the initials M.R., U.R. and C.W.M. Provenance: Marshall Field to Colonial Williamsburg to F&F. Accompanying label calls it "a magnificent specimen, a collector's prize."
Details and more photos.