Edwin M. Knowles Platter Value Guide

The Edwin M. Knowles oval serving platter is a quintessential example of mid-century American semi-vitreous porcelain. Produced in East Liverpool, Ohio, these floral-patterned pieces represent the peak of domestic dinnerware manufacturing before the company's 1963 closure.

What Is Edwin M. Knowles Platter Worth?

The typical price range for Edwin M. Knowles Platter is $15 - $25 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Condition of the floral decal, as fading or scratches significantly reduce the $15-$25 market value.
• Presence of crazing or chips in the semi-vitreous porcelain body which affects structural integrity.
• Rarity of the specific floral pattern, as some limited production runs command higher interest from specialized collectors.
• Completeness of the glaze, ensuring no 'flea bites' or rough spots are present along the platter's edge.

How to Identify Edwin M. Knowles Platter?

• Check the underside for the Edwin M. Knowles China Company backstamp, often featuring a stylized logo or the company name.
• Examine the material for a semi-vitreous finish, which has a slight translucency compared to heavy stoneware.
• Look for the characteristic 1940s-1950s floral motifs, typically applied as decals with vibrant multi-color palettes.
• Verify the oval shape and smooth rim profile consistent with mid-century mass-produced American serving ware.

History of Edwin M. Knowles Platter

The Edwin M. Knowles China Company was a prominent American pottery manufacturer, established in East Liverpool, Ohio, in 1900. Known for producing semi-vitreous dinnerware, the company became a staple in American homes, especially during the mid-20th century. Their designs often featured classic floral patterns and were mass-produced, making them accessible to a wide audience. The company ceased operations in 1963, making their pieces highly collectible for those interested in American dinnerware history.