子冶款 楊彭年底款 宜興紫砂‘竹外一枝斜’茶壺
of compressed globular form, carved on the body on one side with a bamboo sprig, reverse with inscriptions 'Zhu Wai Yi Zhi Xie' (one tilted beyond the bamboo groove), signed 'Zi Ye', the base impressed with a four-character seal mark 'Yang Peng Nian Zhi' (Made by Yang Pengnian)
Provenance: Private American collection, California