Everything For The  Detectorist - Metals
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More Indepth notes on Metals
Source: Bibliography
Metals - British Sterling Currency Composition
1986
Summary Of Denominations
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Roman denarius. The denarius was a small silver coin and was the most common Roman coin in circulation. As well as being the abbreviation for the old British penny "d" was the symbol for the French coin the denier, whose name was derived from denarius. The dinar which was (and still is) used by some Arabic nations also has its origins in the denarius. The drachma was the major unit of Greek currency both in Ancient Greece and in more modern times. It was replaced by the Euro in 2002. The dupondius was another Roman coin worth an eighth of a denarius
Summary of Denominations
Farthing                     Quarter penny, small bronze coin                                  
Halfpenny                  Half penny, small bronze coin
Penny                        One 'old' penny, large bronze coin    
Threepenny Bit          Three pence, small thick twelve sided coin                
Sixpence                    Six pence, popular small silver coin         
Shilling                       Twelve pence, small silver coin
Florin                         Two shillings, large silver coin           
Half Crown                Two shillings and sixpence, large silver coin             
Crown                       Five shillings, large silver ceremonial coin
                                 (Note: The modern decimal crown has a face value of Five pounds.  
 
|   Specifications   -   Composition                              Metals | 
| Denomination | 
Diameter | 
Thickness | 
Mass | 
Composition | 
Edge | 
Introduced | 
| Farthing | 
20.32mm | 
  | 
3.56g | 
Bronze | 
  | 
1279 | 
| Halfpenny | 
25.48mm | 
  | 
5.66g | 
Bronze | 
  | 
  | 
| Penny | 
30.86mm | 
1.52-1.65mm | 
9.45g | 
Bronze | 
Plain | 
  | 
| Threepence | 
16.2mm | 
  | 
1.20g | 
Silver | 
  | 
  | 
| Threepence 'Bit' | 
21.3-21.8mm | 
  | 
6.8g | 
Brass | 
  | 
  | 
| Sixpence | 
19.41mm | 
  | 
2.83g | 
Cupronickel | 
  | 
  | 
| Shilling | 
23.59mm | 
  | 
5.65g | 
Cupronickel | 
  | 
  | 
| Florin - Two Shillings | 
23.50 | 
  | 
11.31g | 
Cupronickel | 
  | 
  | 
| Halfcrown | 
32.31mm | 
  | 
14.14g | 
Cupronickel | 
  | 
  | 
| Crown | 
38.61mm | 
  | 
28.28g | 
Cupronickel | 
  | 
  | 
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