A pair of large petrified wood specimens

A pair of large petrified wood specimens, of sliced cross-section form, the tops polished to reveal a multitude of colours and some growth rings visible, the majority of the bark texture to edges preserved, probably Snake River, North America, Triassic period, 225 million years old, 46.8 x 75.2cm, 3.8cm deep. (2)

Provenance: Acquired from Peclard, Zurich in 1973.