Federal Glass "Yorktown" (also known as Colonial) small dessert or berry bowls

These are mid-century Federal Glass "Yorktown" (also known as Colonial) small dessert or berry bowls in the "Sundown" Iridescent Smoke Gray carnival pattern. Made primarily in the 1960s and 1970s, they feature a distinctive scalloped rim, an exterior geometric "thumbprint" panel design, and a vivid iridescent sheen that catches rainbow tones when held to the light.