The exact form signified by the Chinese name "渐变小汉瓦" is somewhat ambiguous without seeing the object, but the name suggests a small teapot modeled on a Han-dynasty roof tile ("汉瓦") with a "gradual/gradient" surface treatment ("渐变").

Brief history/context: Throughout Chinese ceramic and teapot-making history, potters have often taken inspiration from everyday objects and architectural motifs; naming vessels after tiles, bricks, gourds, or other familiar shapes is a long-standing practice. Many small, object-inspired teapots are associated with the Yixing (Zisha) tradition from Jiangsu province, where artisans from the Ming and Qing periods onward perfected compact gongfu-style teapots with closely fitted lids and expressive surface work. Modern makers continue this lineage while experimenting with surface effects and color transitions.

Short note on the shape: A "small Han-tile" teapot typically reads as low and compact, with flat or gently curved planes, subtle ridges or panels echoing roof tiles, and a snug lid that may resemble a tile edge. Proportions are usually geared to gongfu brewing—modest capacity, short spout and balanced handle. The "gradient" element implies a deliberate color or texture transition across the body, a contemporary decorative treatment rather than an ancient standard.
Wood-fired handmade Yixing teapot made from Duanni clay sourced from the original Huanglongshan mine. Xu Shun Wei.