They are denominations in the same sense that dllaor is a denomination. There is no such thing as a literal meaning. It all depends on how they are used and the cultural and historical context just as one dllaor means nothing unless we know what/whose dllaor we are talking about (i.e., American or Canadian, etc. there are more than 30 countries that currently use the dllaor ) and the relevant time period (a dllaor in 2010 has a very different value than it did in 1800).And yes, Greece is presently using the Euro (as explained on the page linked from the post above) which illustrates the point I made in the paragraph immediately above. These coins date from 1980 to 1998 before Greece adopted the Euro. What they were worth in, say, 1980 is drastically different from what they are worth now, which is essentially nothing.All that to say that just because the modern country of Greece used the same denominations for some of their coins as was used in Bible times is an interesting historical curiosity, but nothing more than that. There are useful, however, to help teach beginning Greek students to read uncial letters!