Alcatraz Penitentiary - SOLD 2.60" Showcase Concrete backtoschool2025 but then so was Pyroraptor

but then so was Pyroraptor

A small information card is included with each specimen that also serves as the certificate of authenticity

When lightning strikes dry sand

61" fossil pair from the Tethys Ocean

Two Jurassic dinosaur fossils

Alcatraz Penitentiary - SOLD 2.60" Showcase Concrete backtoschool2025 but then so was PyroraptorThis is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 60" along the widest point. This specimen, from the famous Alcatraz Island, saw some 1,500 prisoners pass by it during the prison's operation. A certificate of authenticity is included.