Parashah Ki Tavò

The Jews are instructed to gather large stones when they cross the Jordan River. 
These stones were to be plastered, and the entire Torah was to be engraved upon them. Another set of stones was also to be inscribed with the entire Torah, and be set on Mt. Ebal. 

 Stones letters 

 

Hebrew letters painted on flat stones

Clay colored letters

Hebrew letters painted and engraved on different forms of clay.