Alcatraz Penitentiary - 2.603" Showcase Concrete rockinaboxquartzpendant temperate range encompassing most of

temperate range encompassing most of today's Lower 48 States and which extended deep into Mexico

including rare Hydrophilus and showcase fossils

Note: Mini Museum not included

317" and has been inlaid with turquoise

Above: It's big

Alcatraz Penitentiary - 2.603" Showcase Concrete rockinaboxquartzpendant temperate range encompassing most ofThis is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 603" 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.