Country State Classification Source WallNo Centennial Commercial Location surroundPic
United States Pennsylvania Argillite (Slate) Slatington 10RB21 26912 y Front Face (South) DSCF0340.jpg
No 10RB21 is:

Description

blue-black
fine grain
roofing and tile slate


ARCHIVE STONE NOT AVAILABLE

Actual Picture from the Stone Wall: /mid2000/10rb21.jpg (63575 bytes)