Stoneware maker

Western Stoneware Company marks

Western Stoneware was created in 1906 by buying seven potteries: five in Illinois (Monmouth Pottery, Weir, Macomb Pottery, Macomb Stoneware, and D.

By The Mark Index EditorsUpdated October 20, 2026 Sources partly disagree
Active
1906–2006
Based in
Monmouth, Illinois, United States
Marks listed
1
Typical pieces
crocks, jugs, churns, water coolers

The marks, by date

Each mark’s wording is written out as a transcription: the words and line breaks, not a picture of the mark. Where a source describes a mark instead of quoting it, the description is shown in italics.

TranscriptionWESTERN STONEWARE CO.PLANT 1

Where: side of crock or jug, inside a maple leaf

The plant number (1–7) identifies the factory; Plant 1 was Monmouth, Plant 2 Weir, Plants 3–4 Macomb.

from 1906
stamped inkleaf

History

Culbertson of White Hall), plus Clinton, Missouri and Fort Dodge, Iowa. Each became a numbered plant, and the company kept Monmouth's maple leaf as its trademark. Early output was salt-glazed and Albany-slipped with freehand cobalt, but it soon moved to Bristol glaze with stenciled and stamped marks.

Dating clues

  • A maple leaf with a plant number means 1906 or later; the same leaf with 'Monmouth Pottery Co.' is pre-merger.
  • Plant 1 (Monmouth) stopped production after 1930 and Plant 6 (Clinton) in 1910; Plant 3 (Macomb Stoneware) burned in 1913, which helps narrow plant-numbered pieces.

Look-alikes and reproductions

  • Monmouth Pottery Co. maple leaf marks (pre-1906).

Other names on the marks

Western Stoneware Co.; WSCo.

Where sources disagree: Sources differ on the end date: WorthPoint gives 1906–2006, while other summaries mention a closure in 1985 and a revival that closed in 2005 or 2006.

Sources

  1. The Western Stoneware Company – Blue & White Pottery Club
  2. Western Stoneware Company History – westernstoneware.com
  3. Western Stoneware / Macomb Pottery / Weir Pottery – WorthPoint Dictionary (search excerpt)

Marks help identify a maker and a date range, but they can’t prove a piece is genuine. Reproductions and later reissues can carry old marks. This entry isn’t an appraisal.

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