Positional board of units and tens
The basic Russian unit is the arshin (cubit), in use since the 16th century. It was standardized by Peter I in the 18th century to measure exactly 28 English inches (71.1 cm). Thus, 80 vershóks = 20 piads = 5 arshíns = 2.240 English inches.[1] The pud was in use in Russia.
The pud was used in Russia, Finland, Belarus and Ukraine. The pud was first mentioned in a series of documents from the 12th century. It can still be found in documents in reference to agricultural production (especially grain), and is used in the casting of bells for new Orthodox churches.