The Vtg COORS Buchner Porcelain 03 Sifter Funnel is a high-quality filter funnel made of porcelain, originating from the United States. The Coors brand is known for producing reliable and durable porcelain ware products, making this sifter funnel a valuable addition to any collection,  laboratory or medical setting. It measures approx 4 1/8" long and is approx 2 3/4" in diameter. Its unique design allows for easy filtration and straining of liquids or solids, making it a essential tool for various applications in research, healthcare, and dental industries.