This one was struck in 1878 at Chihuahua and bears the initials AV which denotes the assayer for the mint was Antonio Valera who served as assayer from 1873 - 1880. In 1877 three other assayers were employed by the Chihuahua Mint and their initials were afixed to some of the coins of 1877: EA (Edwardo Avila) JM (Jacobo Mucharraz) GR (Guadelupe Rocha) One might think, "If any errors occurred at Chihuahua, it would happen on another's watch." but, alas. it happened under Antonio's supervision. He still remained on the job two more years. Check out the word LIBERTAD on the Liberty Cap by clicking photo for an enlargement: (coinarchives.com photo) http://www.coinarchives.com/w/lotviewer.php?LotID=1075077&AucID=991&Lot=20207&Val=f165abb9a67c43a38097bd09ef5d0080 Hope you enjoyed seeing this 1878 double struck error silver 8 Reales... Clinker
