Black shale tobacco pipe
1851-1910
Black shale dish
1880-1900
Native American shale pipe, USA, c. 1801-1920
1801-1920
Semicircular piece of shale
Black shale tobacco pipe
1871-1910
Black shale tobacco pipe
1851-1910
Spindle whorl of turned shale, of Roman date
Shale ballast for Great Northern Railway passenger locomotive
1895-1905