Vintage Yixing Zisha Teapot | Square Circle Factory 1 | Spider Lid Design | Rare Black Clay | 1980s-1990s

Authentic vintage Yixing teapot from the Square Circle Brand (方圆牌), produced by Factory 1 in Yixing, China during the late 1980s to early 1990s export era. Crafted from black heini (黑泥) zisha clay with a matte, unglazed finish, this rare piece features a pierced geometric body and an intricately sculpted spider hidden inside the lid.

Condition: Excellent vintage condition, appearing unused with no chips, cracks, or staining. Please review all photos for full condition details.

Dimensions & Item Details:
- Brand: Square Circle (方圆牌)
- Factory: Factory 1, Yixing, China
- Clay Type: Black Heini (黑泥) Zisha
- Design: Pierced Body with Spider Detail Inside Lid
- Seals: Deep Molded Base Seal + Lid Stamp
- Labels: Red Square Circle Diamond Sticker + Green “Made in China” Oval Sticker
- Includes: Original Brocade Presentation Box with Satin Lining
- Status: Vintage, Excellent Condition
- Era: Late 1980s–Early 1990s

A rare and highly collectible piece, perfect for Yixing enthusiasts, serious collectors of Chinese ceramics, or as a distinguished cultural gift.