Nambu Special This item is said to be from 60-70+ years ago, but details are unknown. I made regular cold brew tea with it, and it was delicious and worked perfectly fine. I've only used it about twice. Since it's old, it's not suitable for those who are concerned about minor details or don't appreciate the vintage feel. The "Nambu Special" engraving not only guarantees the product's quality but also signifies a culmination of tradition and craftsmanship. Therefore, it's highly sought after by collectors and can fetch high prices. Nambu Ironware Kyusu (Teapot) Iron Kettle Antique Vintage Showa Retro Interior Collection Tableware Kitchen