AFFENDIX T
JANUARY 1974
Comparative Costs of Plein or Milled Edged Coins in Different Metals (Cost expressed in £ per thousand coins)
Pure Cupro- Nickel Bronze Aluminium Nickel nickel nickel briss
Cupro- Nickel
clad
Cupro- Brass Copper, nickel clad clad
steel
stoel
steel
steel
*
15 millimetre dirm. Weight (grannes)
1.48 1.48 1.47
1.47
0.44
1.32
1.32
1.32
1.32
Cost of metrl
2.52
1.63 1.22
1.33
0.14
0.40
0.32
0.29
0.30
Cost of manufacture
3.38 2.07 2.08
2.37
1.46
2.80
2.68
2.71. 2.70
Total cost
5.90
3.70
3.30
3.70
1.60
3.20
3.00
3.00
5.00
17 millimetre dirn.
Weight (grammes)
2.11
2.12
2.04
2.11
0.63
1.88
1.88
1.88
1.88
Cost of metal
3.59
2.33 1.73
1.91
0.20
0.57
0.46
0.43
0.42
Cost of manufacture
4.01
2.37 2.37 2.59
1.70
3.33
3.24
3.19 3.28
Total cost
7.60
4.70
4.10
4.50
1.90
3.90
3.70
3.60
3.72
193 millimetre din.
Weight (grenmes)
3.24
3.26
3.14
3.24
0.97
2.9吋
2.90
2.90 2.90
Cost of metal
5.51
3.59
2.66
2.93
0.32
0.88
0.71
0.64
0.65
Cost of manufacture
5.09
2.91
2.84 2.87
1.98
4.12
4.09
3.96
4.75
Tetel cost
10.60
6.50
5.50
5.80
2.30
5.00
4.50
4.60
4.80
22 millimetre dien.
Weight (gremnes)
4.56 4.59
4.41
4.56
1.36
4.07
4.07
4.07
4007
Cost of metal
7.75 5.05
3.74
4.12
0.44
1.24
1,00
0.90
0.92
Cost of manufacture
6.25
3.65
3.56 3.38
2.36
4.96
4.80
4.60 4.88
Total cost
14.00
8.70
7.30
7.50
2.80
6.20
5.80 5.50
5.80
25 millimetre dien.
Weight (grammes)
6.67 6.72
6.45
6.68
2.00
5.96 5.96 5.96 5.95
Cost of metal
11.34 7.39
5.47
6.03
0.65
1.82 1.46
1.31
1.34
Cost of manufacture
8.16 5.01
4043
4.07
2.95
6.58
6.34
6.09
6.56
Total cost
19.50 12.40
·9.90
10.10
3.60
8.40
7.80
7.45
7.90
28 millimetre dirm.
Weight (grammes)
9.34
9.40
9.03
9.38
2.78
8.34 8.34
8.34
8.34
Cost of metal
15.88
10.34
7.66
8.47
0.90
2.54 2.04 1.83 1.83
Cost of manufacture
10.62
6.56
5.44 4.33
3.60
8.66 8.26 7.87 8.52
Total cost
26.50 16.90
13.10
12.80
4.50
11.20 10.30
9.70 10.40
31 millimetre diam.
Weight (grannes)
13.24 13.33
12.80
13.24
3.95
11.83
11.83
11.83 11.83
Cost of metrl
Cost of manufacture
Total cost
22.51 14.56 13.59 8.34 36.10 23.00
10.85 11.96
6.65
7.24 17.50 19.20
1.28
3.61 2.90
4.52
11.49 11.00
2.60 10.40 11.34
2.66
5.30
15.10 13.90
13.00 14.CO
NOTE:
Metal costs cre based on the following market prices of metals:
£1,700 per tunne
Nickel
Zinc
£600
TI
· Mild steel
£150
Copper
£900 per tonne
Aluminiun
£325
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