2016 The Dolos 1oz Proof R2 coin

2016 South Africa The Dolos R2 Silver Proof Coin

Commemorates the Dolos, a South African invention used to protect harbor walls and dissipate wave energy

Reverse depicts people on a harbor wall protected by dolosse, with "SOUTH AFRICAN INVENTIONS" and "R2"

Obverse features the South African coat of arms, year "2016," and "South Africa" in all official languages

Struck in proof quality

Composition: 1 oz of .925 fine silver (with .075 copper)

Diameter: 38.725 mm

Mass: 33.626 g

Extremely limited mintage of only 316 pieces

Includes Certificate of Authenticity (COA)

Presented in its original blue SA Mint display case

A rare gem for numismatists and collectors of South African heritage coins