Vintage Libbey USA Amber Glass Glasses, Made in the USA, 2 Pieces, 1960s-1970s Size: Diameter: Approximately 7cm, Bottom Diameter: Approximately 5.5cm, Height: 12cm There is some soot or dust-like residue inside the glass at the circle, which occurred during manufacturing. Other than that, they appear to be in good condition. Are these suitable for those who like American diners or Fire King? Please refrain from purchasing if you are overly concerned about minor imperfections.