Bulgaria and the euro Bulgaria and the euro Bulgaria committed to switching its currency, the lev, to the euro upon its joining the European Union in 2007, as stated in its EU accession treaty. The transition will occur once the country meets all the euro convergence criteria; it currently meets three of the five criteria, the exception being its membership for at least two years of the EU's official exchange rate mechanism (ERM II), which it has not yet joined despite the Bulgarian lev having been pegged to the euro since its introduction in 1999. In 2011 Bulgaria's Minister of Finance Simeon Djankov stated
Fractional currency were employed: experimental paper, adding surcharges, overprints, blue end paper, silk fibers, and watermarks to name a few. Fractional currency shields which had single sided specimens were sold to banks to provide a standard for comparison for detecting counterfeits. Postage and fractional currency remained in use until 1876, when Congress authorized the minting of fractional silver coins to redeem the outstanding fractional currency. Three people were depicted on fractional currency during their lifetime: Francis E. Spinner (Treasurer of the United States), William P. Fessenden (U.S. Senator and Secretary of the Treasury), and Spencer M. Clark (Superintendent of the National Currency