Charles F. Helfricht Vernier Compass, Philadelphia, Pennsylvania, first half 19th century, 5 1/2-in. dia. engraved silvered dial marked "Charles F. Helfricht/Philadelphia," fleur-de-lis representing north and reading "Warranted," blued needle and central lifter, circular spirit level, outkeeper and vernier reading 60-40-20-20-40-60, housed in its original mahogany case with interior label. Provenance: Richard Miller Collection. Estimate $200-300 Items may have wear and tear, imperfections, or the effects of aging. Any condition statement given, as a courtesy to a client, is only an opinion and should not be treated as a statement of fact. Skinner shall have no responsibility for any error or omission.