Technik4 have you do your coin mint? I am learning how to mint and can give more information. Check out Murdock the Moneyer in the craft thread page 5.
For those who want to know how minting was done.
Depending on the time period, they did have powered hammers. The powered hammer was driven by a water wheel generally with the water passing under the wheel, not like the normal movie where water drops from the top.
The raw ore was smelted off site generally at the mine itself. Further refining was done on site in furnaces.
Basic process.
Heat metal in furnace or crucible. Pour in sheet molds near the thickness of the coin. Let cool. Take sheet and cut into working squares or strips. Sheets size depending on time. The strip was also used.
The following varies with time and location. The strip was place on table which had an arch punch generally one size larger than coin. Ex if striking dimes the blank would be penny size. The table had a hole in center with the arch punch over the hole. The strip would place over the punch the worker would be sitting down. Smack with hammer, blank falls into a tub below. Move strip forward smack again. The left over strip is melted down again.
These blanks are weight and either clipped or a small amount added with a tack hammer. (not really a tack hammer but that gives the visual). These blanks go to the striker(s). The obverse (heads) die is placed in a stump. The blank on top and then the reverse is placed on. Smack the blank with three pound or greater. This could be a two-man operation. It was if you use a larger hammer. The coin goes to cutting table to be trimmed. Imagine a table with a set of tin snips, with one handle being attached to table and a three-foot handle. The rim would be trim off. Think of ridge of coins or if have a long cross penny all the cross must be there. The coins were then weight by groups.
Done. A finished coins.
Coins were also cast in clay. The very basic process which I have yet to recreate. The molds had multiple coins engraved in to the clay. The mold was fired. Liquid metal pour into mold. Cool it. Break it. Clip off the flash. Melt the flash and spend the coins.
I still trying to figure out the mechanics of a hot strike the Roman’s did with bronze and other coins.
Jdavis asked
What would the political mechanism to this be? It varied a lot in history.
Would it be a guild of coins or a warden of coins or would there be a coin guard?
Guild was generally with a goldsmith but I have a vague memory of some being separate.
Who would control and protect the minting process? The king and local law.
Do they only mint the cities coins? No a local lord, bishop, high mucky muck could have dies made for his use.
DO they collect old worn coins for melting down and re-minting? In England if the all the arch of the long cross of the penny was missing, the coin was suppose to not be legal. Coins would be taken and melted. If decreed the precious metal content would be decreased. So yes some of coins in history were not totally one hundred percent pure. The coins would be reissued.
Other thoughts
In England, the dies were generally issued from one location. The finish die would have some blank space so the local moneyer could add his name, location, mark etc.
Please change the grey color of the crest to white or something else. It does not have enough contrast.
Coins and Minting by Tom Cooper (If I remember the author off the top of my head.) Ibn 0747800693 for the pamphlet.
SITES
http://www.money.org/numismaticinfo.html
http://www.geocities.com/Athens/Acropolis/6193/index.html
http://members.tripod.com/~Charlemagne64/medieval.html
http://units.ox.ac.uk/departments/archaeology/ccindex/ccindex.htm
http://kernunnos.com/Home.shtml
http://www.med.unc.edu/~nupam/welcome.html