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| 1-2 |
Low Art Tile Co., Chelsea, Mass. Established 1887-1888. |
| 3 |
Lycett, Edward, Atlanta, Ga. Established 1890. |
| 4 |
Lyman, Fenton & Co., Bennington, Vt. 1849-58. |
| 5 |
Madden, J. M., Rondout, N. Y. c. 1870. Impressed. |
| 6-7 |
Thomas Maddock & Sons, Trenton, N. J. Established 1882. |
| 8 |
Thomas Maddock's Sons Co., Trenton, N. J. From 1902. |
| 9-11 |
Maddock Pottery Co., Trenton, N. J. From 1893. |
| 12-13 |
John Maddock & Sons, Trenton, N. J. From 1894. |
| 14 |
Mann, John, Rahway, N. J. Established 1830. Impressed. |
| 15 |
Markell, Immon & Co., Akron, Ohio. c. 1869. Impressed. |
| 16 |
Marteen, W., Pennsylvania. c. 1875. Impressed. |

| 17-25 |
Maryland Pottery Co. (D. F.Haynes & Co.), Baltimore, Md. |
| 26 |
Mason & Russel, Cortland, N. Y. c. 1870. Impressed. |
| 27-29 |
Matt Morgan Art Pottery Co.,Cincinnati, Ohio. Established 1883. |
| 30-38 |
Mayer Pottery Co., Beaver Falls, Pa. Established 1881. |

| 1-12 |
Mayer Pottery Co.,(Contd). |
| 13 |
Mayers, W. S., Roseville, Ohio. c. 1870. In blue. |
| 14 |
McCarthy Bros., Somerville, Mass. c. 1870. Impressed. |
| 15-16 |
McLaughlin, M. L., Cincinnati, Ohio. Established 1876. |
| 17 |
D. E. McNichol Pottery Co., E. Liverpool, Ohio. From 1892. |
| 18-20 |
I. M. Mead & Co., Atwater, Ohio. c. 1850. Impressed. |
| 21 |
Mear, Frederick, Boston, Mass. c. 1840. Impressed. |
| 22 |
Medinger, Jacob, Neiffer, Pa. c. 1880-1930. |
| 23 |
Mellick, H. H., Roseville, Ohio. c. 1875. Impressed. |

| 24-37 |
Mercer Pottery Co., Trenton, N. J. Established 1868-69. |
| 38-39 |
Mercer, Henry C., Moravian Pottery & Tile Works. |
| 40 |
Merrill, Edwin H., Springfield, Ohio. c. 1835. Impressed. |
| 41-42 |
Merrimac Ceramic Co., Newburyport, Mass. Established 1897. |

| 1-2 |
Middle Lane Pottery, E. Hampton, N. Y. about 1890. |
| 3-4 |
Millington, Astbury & Poulson, Trenton, N. J. 1859-70. |
| 5 |
Miner, William, Symmes Creek, Ohio. c. 1869. Impressed. |
| 6 |
Monmouth Pottery Co., Monmouth, Ill. About 1890. |
| 7 |
Morris & Willmore, Trenton, N. J. |
| 8 |
Mosaic Tile Co., Zanesville, Ohio. |
| 9 |
Morgan, D., New York, N. Y. c. 1794-1804. Impressed. |
| 10-3 |
George C. Murphy Pottery Co., E. Liverpool, Ohio. |
| 14 |
Myers & Hall, Mogadore, Ohio. c. 1873. Impressed. |
| 15 |
E. & G. Nash, Utica, N. Y. About 1820. Impressed. |
| 16 |
New Castle Pottery Co., New Castle, Pa. |
| 17-48 |
Newcomb Pottery, New Orleans, La. Established 1896. |
| 23-48 |
are decorators marks. |
| 49-57 |
New England Pottery Co., Boston, Mass. Established 1875. |
| 49 |
Printed mark, 1878-1883. |
| 50 |
c.1880. |
| 51 |
c.1886-88. |
| 52 |
c.1886. |
| 53 |
c.1883-1886. |
| 54 |
c.1887. |
| 57 |
c.1888-89. |
| 56 |
c. 1889-95. |

1 |
New Jersey Pottery Co., Trenton, N. J. 1869-1883. |
| 2-8 |
New Milford Pottery Co., New Milford, Conn. Established 1886. |
| 9 |
Nichols & Boynton, Burlington, Vt. c. 1856. Impressed. |
| 10 |
Nichols & Alford, Burlington, Vt. c. 1854-1856. |
| 11-12 |
Norton, Luman, Bennington, Vt. |
| 11 |
1823-28. |
| 12 |
1828-33 |
| 13 |
L. Norton & Son, Bennington, Vt. 1833-40. Impressed. |
| 14-17 |
Julius Norton, Bennington, Vt. (1841-44)(1847-50). Impressed. |
| 18 |
Norton & Fenton, Bennington, Vt. 1844-47. Impressed. |
| 19 |
J. & E. Norton, Bennington, Vt. 1850-59. Impressed. |
| 20 |
J. & E. Norton Co., Bennington, Vt. 1859-61. Impressed. |
| 21 |
J. Norton & Co., Bennington, Vt. 1859-61. Impressed. |
| 22 |
E. & L. P. Norton, Bennington, Vt. 1861-81. Impressed. |
| 23 |
Edward Norton, Bennington, Vt. 1881-83. Impressed. |
| 24-27 |
Edward Norton & Co., Bennington, Vt. 1883-94. |
| 28-29 |
Ohio China Co., E. Palestine, Ohio. |
| 30 |
Ohio Valley China Co., Wheeling, W. Va. 1890-95. |

| 1-2 |
Ohio Valley China Co.(Cont'd) |
| 3-4 |
Ohr, George E. Biloxi, Miss. 1890- 1900. |
| 5-6 |
Oliver China Co., Sebring, Ohio. Established 1899. |
| 7-13 |
Onondaga Pottery Co., Syracuse, |
| 14 |
Orcutt, Belding & Co., Ashfield, Mass. 1848-50. Impressed. |
| 15 |
Orcutt, Guildford & Co., Ashfield, Mass. 1848-50. Impressed. |
| 16 |
Walter Orcutt & Co., Ashfield, Mass. 1848-50. Impressed. |
| 17 |
Orcutt, Humiston & Co., Troy, N. Y. c. 1850-60. Impressed. |
| 18-32 |
Ott & Brewer, Trenton, N. J. 867-92. The word "BELLEEK" was N. Y. |
| 32 |
about 1867. |
| 33-35 |
J. B. Owens Pottery Co., Zanesville, Ohio. 1885-92. |

| 1 |
Paul, Samuel, Pennsylvania. |
| 2-3 |
Pauline Pottery, Edgerton, Wis. Established 1883. |
| 2 |
Impressed on early pieces. Printed on later wares. |
| 3 |
about 1888. |
| 4 |
Penna. Museum & School of Industrial Art. Established 1903. |
| 5-7 |
Pen Yan Pottery, Yates County, N. Y. about 1830-1850. |
| 8-5 |
Peoria Pottery Co., Peoria, Ill. 1873-94. |
| 16-17 |
Perry, Mary C., Detroit, Mich. |
| 18 |
Peyrau, A., New York City, 1891. |
| 19 |
Phoenix Pottery, Phoenixville, Pa. Established 1867. |
| 20-28 |
Pioneer Pottery Co., Wellsville, Ohio. 1885-1896. |
| 21-22 |
Morley & Co. 1879-1885. |

| 29 |
Pfaltzgraff Pottery, York, Pa. c. 1840-1900. Impressed. |
| 30 |
C. & H. Poillon, Woodbridge, N.J. |
| 31-41 |
Potters Cooperative Co., E. Liverpool, Ohio. Established 1892. |
| 42-43 |
Price, Xerxes, Sayreville, N. J. About 1802. Impressed. |
| 44-48 |
Prospect Hill Pottery Co., Trenton, N. J. Established 1880. |

| 1-3 |
Purdy, Solomon, Atwater, Ohio. c. 1820. Impressed. |
| 4 |
Pruden, John, Elizabeth, N. J. About 1830-76. Impressed. |
| 5 |
Quigley, S.,Cincinnati3Ohio. c. 1834. This mark questionable. |
| 6-7 |
Read, Thomas, Newport, Ohio. 1850-1865. Impressed. |
| 8 |
Remmey,John III, New York, N. Y. 1799-1814. On brown stoneware. |
| 9-11 |
Remmey, Richard C.,Philadelphia, Pa. Established about 1859. |
| 12 |
Rice, Prosper, Putnam, Ohio. 1827-1850. Impressed. |
| 13 |
Richey & Hamilton, Palatine, W. Va. c. 1875. Mark in blue. |
| 14 |
Risley, Sidney, Norwich, Conn. About 1836. Impressed. |
| 15-16 |
Robertson Art Tile Co., Morrisville, Pa. |
| 17 |
Rogers, John, New York, N. Y. About 1860 to 1890. |
| 18-30 |
Rookwood Pottery, Cincinnati, Ohio. Established 1879. |
| 2 |
1881-1883. |
| 27 |
1886. |
| 28 |
1887. |
| 29 |
1895. |
| 27-29 |
are generally impressed. A dot was added yearly after 1886. |
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