In the late Qing Dynasty, there is an antique censer made of aged red copper. The author's mark is "Yutang Qingwan" (a scholar's studio name). The work's title is a double-handled three-legged copper censer. It was crafted using a one-piece casting technique, which is also a refined copper craftsmanship method. Therefore, it is extremely heavy, weighing about two kilograms (four jin and a half), and made from pure red copper material. Its shape is very precise: the three legs lie on the same straight line, and the two handles are at the same height. This craftsmanship is extraordinary. Despite its long history, it has not deformed at all, which is quite rare. On the bottom of this three-legged censer, there are four large calligraphic characters stating "Yutang Qingwan." Under magnification, it is clearly visible that these were hand-carved with deep and powerful engraving skills. The four characters are skillfully and strongly carved. Due to its great age, the surface of the censer has developed a natural thick patina, which looks very beautiful. Whether considering its form, design, weight, refined copper craftsmanship, the engraved inscriptions at the bottom, or the oxidized thick patina on its surface, it completely matches the characteristics of the craftwork from that era. Its overall condition is very good. The entire造型 is auspicious, simple, solid, and elegant. It is indeed a high-level artwork, absolutely worth collecting and preserving.