King's Crown ruby-flashed wine glasses.
These glasses are examples of the King's Crown pattern, also known as Thumbprint, which was popularized in the late 19th century and continued into the mid-20th century. The pattern is characterized by its distinctive raised 'thumbprint' design around the upper portion of the glass. Originally produced by several glass manufacturers, including Adams & Company and later Tiffin-Franciscan, King's Crown glassware was made in a variety of colors, with ruby red being a particularly popular choice. These glasses were commonly used for serving wine or water and were a staple in many households during their period of production.