Avon Pottery is tricky to identify because there are 4 companies that used the Avon mark:

1. Avon Ware (The Avon Art Pottery), Staffordshire, UK, founded 1930+ to present times
2. Avon Faience (Vance), Tiltonville, Ohio, USA, 1880-1908
3. Avon Faience Company, Wheeling, West Virginia, 1902-1905
4. Avon Pottery, Cincinnati, Ohio, USA, founded 1886-1888 (often just marked with the singular word ‘Avon’)

Everyone wants to have #4 Avon Pottery, Cincinnati, Ohio, USA, founded 1886-1888 - because cha-ching!  If you are lucky enough to land a piece of pottery made by #4, you have hit the lotto.  Avon used both yellow and white clay.  The yellow clay was typically in colored slips and modeled or etched, then finished with a dull “smear” finish.  The white clay was decorated with atomised colors and/or painted then finished with a high glaze. All pieces were thrown on a wheel and some had modeled handles.

#1 Avon Ware (The Avon Art Pottery), Staffordshire, UK, founded 1930+ to present times, mark looks like this:

#2 - Avon Faience (Vance), Tiltonville, Ohio, USA, 1880-1908 mark, is shown below. This particular stamp shows the Dec 1902 incorporation of J.N. Vance & Sons, La Belle Riverside, and Avon Faience into the Wheeling Potteries Co. which ceased operation in 1905.