The exact form name "祥瑞汉瓦" (literally “auspicious omen — Han tile”) is not a widely documented, standard historic teapot category, so the following is a cautious, contextual description based on the name and common Chinese ceramic/teapot practice.

Brief history: 祥瑞 (xiangrui) denotes auspicious omens in Chinese decorative vocabulary; 汉瓦 (Han wa) literally refers to Han‑period roof or floor tiles. Tea artisans, especially in the Yixing (zisha) and studio‑pottery traditions from the late Ming/Qing onward, often borrowed architectural and antiquarian motifs and gave them poetic names. A “Han‑tile” teapot is therefore likely a later reinterpretation that evokes the forms or surface treatments of Han dynasty tiles—celebrating antiquity and good luck—rather than an object actually made in the Han era.

Shape note: The form typically suggests a low, elongated, slightly arched body reminiscent of a curved roof/tile slab, with a lid that follows the ridgeline and fits snugly into the body. Expect compact, balanced proportions, a short, integrated spout and a modest handle; surface treatment may be plain clay or subtly incised/applied with auspicious cloud, shou (longevity) or xiangrui motifs. Photographs or material details (clay type, maker’s marks) would allow a more specific attribution.
Wood-fired handmade Yixing teapot made from Duanni clay sourced from the original Huanglongshan mine. Xu Shun Wei.