Great Drain from ΛΖ south after removal of elliptical tiles. From northeast ... AMS Horizontal (normal)
Great Drain after removal of elliptical tiles. Tiles that remain are at ΛΖ. From south ... AMS Horizontal (normal)
Great Drain after removal of elliptical tiles. Tiles that remain are at ΛΖ. From southeast ... AMS Horizontal (normal)
