1984 proof coin set in mint box

DETAILS: applies to all the sets

1)   1 c:  Metal Content: Copper    Weight: 3 grams   Diameter: 19.05 mm

2)   2 c:  Metal Content: Copper    Weight: 4 grams   Diameter: 22.45 mm

3)   5 c:  Metal Content: Nickel    Weight: 2.5 grams   Diameter: 17.35 mm

4)   10 c:  Metal Content: Nickel    Weight: 4 grams   Diameter: 23.7 mm

5)   20 c:  Metal Content: Nickel    Weight: 6 grams   Diameter: 24.21 mm

6)   50 c:  Metal Content: Nickel    Weight: 9.5 grams   Diameter: 27.85 mm

7)   R 1: Metal Content: Nickel   Weight: 12 grams
Diameter: 31.00 mm

8)   R 1: Metal Content: Silver   Weight: 15 grams 80% (12grm 999.9)
Diameter: 32.7 mm

Description:
Republic of South Africa Second Decimal Issue 1965 to 1990
In 1962 it was announced that the change in size, design and metal content of coins was being considered. This was primarily due to the increase in the price of silver. Various patterns were struck for consideration by the parliamentary committee investigating this as the increased use of coin automation machines required long term use of the coin types chosen. Due to requests from collectors and Numismatic Societies a silver R1 of 80% silver was minted for proof sets from 1965 and later also for circulation. These coins can be differentiated from the Nickel R1 by their large size and weight. Although they did circulate in 1966, 1967, 1968 and 1969 the silver R1 coins are regarded as a collectors series of coin