The exact form name "祥瑞汉瓦" (xiangrui han wa) is not widely documented in standard teapot typologies, so its identification is somewhat ambiguous. Literally it reads “auspicious/propitious Han tile,” which suggests a teapot inspired by Han-dynasty roof or floor tiles and decorated or named with auspicious symbolism. In Chinese ceramic practice, potters have long borrowed shapes and motifs from architecture and antiquity: since the Song and Ming periods, artisanal teapots—especially Yixing and other regional wares—have adopted natural, architectural and archaic models both for novelty and symbolic meaning. The prefix 祥瑞 (auspicious omen) implies the piece was intended as a lucky or celebratory object, perhaps produced for gift-giving or to evoke ancient cultural resonance.

Shape note: A “Han tile” form would typically be low and elongated or gently curved, echoing the flat, ridged profile of a traditional tile, with restrained horizontal lines and a compact spout and handle that preserve balance for gongfu brewing. If you can supply a photo, I can give a more precise description of proportions, clay, and decorative treatment.
Wood-fired handmade Yixing teapot made from Duanni clay sourced from the original Huanglongshan mine. Xu Shun Wei.