Mint Identification
Calcutta - Diameter 19.3-19.4mm with crescent privy mark on ribbon bow
Bombay - Diameter 19.5-19.6mm with no mint mark
Madras - Diameter 19.6-19.7mm with "S" incused on neck
Madras - Diameter 19.6 -19.7mm with "S" incused on neck and "V" privy mark
