Vintage Yixing Zisha Teapot | Square Circle Brand Factory 1 | Pig Design | Boxed | 1980s-1990s

Genuine vintage Yixing Zisha teapot from the collectible Square Circle Brand (方圆牌), produced by Factory 1 in Yixing, China during the late 1980s to early 1990s export boom. Crafted from authentic hongni (red clay) zisha with a rich reddish-brown tone, this whimsical design takes the form of a pig, featuring sculpted details, colorful enamel accents, and a miniature piglet lid knob.

Key Features:
- Genuine Square Circle (方圆牌) Factory 1 production
- Stylized pig form with sculpted details and enamel highlights
- Red diamond export label and green “Made in China” sticker present
- Deep molded seal on base and secondary stamp under lid
- Hand-inscribed calligraphy carved around the underside of