Looking After Your Finds - Reference
Coinage of England Coin Sizes & Weights
Copyright © 2012 by Nigel G Wilcox · All Rights reserved · E-Mail: ngwilcox@gmx.co.uk
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Different coins vary in size and weight. The following is a short list of coins, showing the respective metal, weight and size (diameter). Please note that, the weight is of mint condition coins. Coins which are worn out, or in low grades, have a lower weight value that mint ones, because parts of the coin itself is worn off by time and circulation. The following text is taken from the website:
"As many UK coins do not have a denomination on them, especially prior to the 20th century, the following gives an index by diameter and weight for Milled coins only. Bear in mind that coins from the 18th Century and earlier show significant variations both in diameter and weight from issue to issue. Hammered coins show far too much variation for them to be indexed in this way.
Milled coins are those produced on a machine press, and have a regular size. This process became standard around the time of Charles II in the middle of the 17th century. Prior to that coins were made by hand hammering, and as there was no collar the size of the coin was irregular. The term milled is also applied to the lines on the edge of the machine-made coins which were introduced to prevent the practice of clipping silver or gold from round the edge.
The term 'Early' as used in the list below generally means pre-1816. Such coins show variations around the figure given
Copper or Bronze Coins:
13.5 mm 1.2 g Quarter Farthing
15.0 mm 1.0 g Bronze Third Farthing
16.0 mm 1.5 g Copper Third Farthing
17.1 mm 1.8 g Decimal Half Penny
18.0 mm 2.4 g Copper Half Farthing
20.0 mm 2.8 g Bronze Farthing
20.3 mm 3.6 g Decimal Penny
22.0 mm 4.7 g Copper Farthing
22.0 mm 5.0 g Early Copper Farthing
23.0 mm 6.0 g 1799 Farthing
25.0 mm 5.7 g Bronze Halfpenny
25.9 mm 7.1 g Decimal Two Pence
28.0 mm 9.3 g Copper Halfpenny
29.0 mm 10.0 g Early Copper Halfpenny
30.5 mm 12.5 g 1799 Copper Halfpenny
31.0 mm 9.4 g Bronze Penny
34.0 mm 18.8 g Copper Penny
36.0 mm 28.3 g 1797 Copper Penny
41.0 mm 57 g 1797 Copper Two Pence
Brass
21.0 mm 6.8 g Three Pence
22.5 mm 9.5 g Decimal One Pound
28.4 mm 16.0 g Decimal Two Pounds (Commemorative)
Brass/Cupronickel Bimetallic
28.4 mm 12.0 g Decimal Two Pounds (Circulation issue)
Silver (or Cupronickel)
11.0 mm 0.5 g Maundy Penny
12.0 mm 0.5 g Early Maundy Penny
12.0 mm 0.7 g The Penny-Halfpeny
13.0 mm 0.9 g Maundy Two Pence
14.0 mm 1.0 g Early Maundy Two Pence
16.0 mm 1.4 g Three Pence
16.0 mm 1.9 g Four Pence or Groat
17.0 mm 1.5 g Early Three Pence
18.0 mm 1.9 g Maundy Four Pence
18.0 mm 3.3 g Decimal Five Pence
19.0 mm 2.0 g Early Maundy Four Pence
19.0 mm 2.8 g Sixpence
21.0 mm 3.0 g Early Sixpence
21.4 mm 5.0 g Decimal Twenty Pence
24.0 mm 5.7 g Shilling
24.0 mm 5.7 g Decimal Five Pence (large)
24.5 mm 6.5 g Decimal Five Pence (small)
25.5 mm 6.0 g Early Shilling
27.0 mm 7.4 g 18 pence
27.3 mm 8.0 g Decimal Fifty Pence (small)
28.0 mm 11.3 g 1849 Godless Florin
28.5 mm 11.3 g The Florin or Two Shillings
28.5 mm 11.3 g Decimal Two Pence (large)
29.5 mm 11.3 g Jubilee Florin
30.0 mm 11.3 g Gothic Florin
30.0 mm 13.5 g Decimal Fifty Pence (large)
32.0 mm 14.1 g Half Crown
34.0 mm 15.0 g Early Half Crown
35.0 mm 15.0 g Three Shillings
36.0 mm 22.6 g Four Shillings
39.0 mm 28.3 g Five Shillings or Crown (date before 1970)
39.0 mm 28.3 g Decimal 25 pence
39.0 mm 28.3 g Decimal 5 pounds
39.0 mm 30.0 g Early five shillings (or Crown)
Gold
16.0 mm 2.1 g Quarter Guinea
17.0 mm 2.8 g Third Guinea
19.0 mm 4.0 g Half Sovereign
20.0 mm 4.2 g Half Guinea
22.0 mm 8.0 g Sovereign
25.0 mm 8.4 g One Guinea
28.0 mm 16.0 g Two Pounds
31.5 mm 16.8 g Two Guineas
37.0 mm 40.0 g Five Pounds
37.0 mm 41.9 g Five Guineas
38.0 mm 39.0 g 1826 or 1839 Five Pounds"
"As many UK coins do not have a denomination on them, especially prior to the 20th century, the following gives an index by diameter and weight for Milled coins only. Bear in mind that coins from the 18th Century and earlier show significant variations both in diameter and weight from issue to issue. Hammered coins show far too much variation for them to be indexed in this way.
Milled coins are those produced on a machine press, and have a regular size. This process became standard around the time of Charles II in the middle of the 17th century. Prior to that coins were made by hand hammering, and as there was no collar the size of the coin was irregular. The term milled is also applied to the lines on the edge of the machine-made coins which were introduced to prevent the practice of clipping silver or gold from round the edge.
The term 'Early' as used in the list below generally means pre-1816. Such coins show variations around the figure given
Copper or Bronze Coins:
13.5 mm 1.2 g Quarter Farthing
15.0 mm 1.0 g Bronze Third Farthing
16.0 mm 1.5 g Copper Third Farthing
17.1 mm 1.8 g Decimal Half Penny
18.0 mm 2.4 g Copper Half Farthing
20.0 mm 2.8 g Bronze Farthing
20.3 mm 3.6 g Decimal Penny
22.0 mm 4.7 g Copper Farthing
22.0 mm 5.0 g Early Copper Farthing
23.0 mm 6.0 g 1799 Farthing
25.0 mm 5.7 g Bronze Halfpenny
25.9 mm 7.1 g Decimal Two Pence
28.0 mm 9.3 g Copper Halfpenny
29.0 mm 10.0 g Early Copper Halfpenny
30.5 mm 12.5 g 1799 Copper Halfpenny
31.0 mm 9.4 g Bronze Penny
34.0 mm 18.8 g Copper Penny
36.0 mm 28.3 g 1797 Copper Penny
41.0 mm 57 g 1797 Copper Two Pence
Brass
21.0 mm 6.8 g Three Pence
22.5 mm 9.5 g Decimal One Pound
28.4 mm 16.0 g Decimal Two Pounds (Commemorative)
Brass/Cupronickel Bimetallic
28.4 mm 12.0 g Decimal Two Pounds (Circulation issue)
Silver (or Cupronickel)
11.0 mm 0.5 g Maundy Penny
12.0 mm 0.5 g Early Maundy Penny
12.0 mm 0.7 g The Penny-Halfpeny
13.0 mm 0.9 g Maundy Two Pence
14.0 mm 1.0 g Early Maundy Two Pence
16.0 mm 1.4 g Three Pence
16.0 mm 1.9 g Four Pence or Groat
17.0 mm 1.5 g Early Three Pence
18.0 mm 1.9 g Maundy Four Pence
18.0 mm 3.3 g Decimal Five Pence
19.0 mm 2.0 g Early Maundy Four Pence
19.0 mm 2.8 g Sixpence
21.0 mm 3.0 g Early Sixpence
21.4 mm 5.0 g Decimal Twenty Pence
24.0 mm 5.7 g Shilling
24.0 mm 5.7 g Decimal Five Pence (large)
24.5 mm 6.5 g Decimal Five Pence (small)
25.5 mm 6.0 g Early Shilling
27.0 mm 7.4 g 18 pence
27.3 mm 8.0 g Decimal Fifty Pence (small)
28.0 mm 11.3 g 1849 Godless Florin
28.5 mm 11.3 g The Florin or Two Shillings
28.5 mm 11.3 g Decimal Two Pence (large)
29.5 mm 11.3 g Jubilee Florin
30.0 mm 11.3 g Gothic Florin
30.0 mm 13.5 g Decimal Fifty Pence (large)
32.0 mm 14.1 g Half Crown
34.0 mm 15.0 g Early Half Crown
35.0 mm 15.0 g Three Shillings
36.0 mm 22.6 g Four Shillings
39.0 mm 28.3 g Five Shillings or Crown (date before 1970)
39.0 mm 28.3 g Decimal 25 pence
39.0 mm 28.3 g Decimal 5 pounds
39.0 mm 30.0 g Early five shillings (or Crown)
Gold
16.0 mm 2.1 g Quarter Guinea
17.0 mm 2.8 g Third Guinea
19.0 mm 4.0 g Half Sovereign
20.0 mm 4.2 g Half Guinea
22.0 mm 8.0 g Sovereign
25.0 mm 8.4 g One Guinea
28.0 mm 16.0 g Two Pounds
31.5 mm 16.8 g Two Guineas
37.0 mm 40.0 g Five Pounds
37.0 mm 41.9 g Five Guineas
38.0 mm 39.0 g 1826 or 1839 Five Pounds"
Copyright © All Rights Reserved by Nigel G Wilcox · · E-Mail: ngwilcox100@gmail.com
Source Courtesy: Coins of England and Great Britain, by Tony Clayton
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