Alcatraz Penitentiary - SOLD 2.52" Showcase Concrete showcasejewelry2025sale20 They are roughly 1/2" (2cm)

They are roughly 1/2" (2cm) in size

An informational photo card and a larger specimen card

a unique branch that evolved a specialized trunk to scrounge for food much like the modern tapir

The animal's shell has been fossilized is exquisite detail and the ribbed

Alcatraz Penitentiary - SOLD 2.52" Showcase Concrete showcasejewelry2025sale20 They are roughly 1/2" (2cm)This is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 52" 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.