Bulgaria struck these euro cent pieces in 2004 as part of a series of EU accession coins, produced well before the country actually joined the eurozone — membership didn't come until 2007, and full euro adoption remains pending to this day. The coins were never legal tender for transactions and exist purely as collector issues, struck in anticipation of an economic integration that has moved considerably slower than Bulgarian authorities expected when they commissioned the dies.
Bulgaria struck these euro cent pieces in 2004 as part of a series of EU accession coins, produced well before the country actually joined the eurozone — membership didn't come until 2007, and full euro adoption remains pending to this day. The coins were never legal tender for transactions and exist purely as collector issues, struck in anticipation of an economic integration that has moved considerably slower than Bulgarian authorities expected when they commissioned the dies.