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2020 I CROWN AND TICKEY – SOUTH AFRICAN INVENTIONS: RETINAL CRYOPROBE

 

The 2020 Crown and Tickey series features a South African invention that has revolutionised cataract surgery. The retinal cryoprobe was developed by South African ophthalmologist and inventor, Selig Percy Amoils, at the Baragwanath Hospital in Soweto, South Africa.
The cryoprobe is a pen-like instrument that delivers extremely cold liquid gas, with precision and accuracy. The cryoprobe is inserted into a cut in the eye to deliver a liquid gas , which freezes to a cataract. The cataract (or other unwanted tissue) can then be removed with no risk of destroying healthy adjacent tissue.
It has since found applications in the field of general as well as veterinary medicine.
R2 STERLING-SILVER CROWN

The reverse of this coin features the anatomy of an eye, together with the years ‘1965’ and ‘2020’, the words ‘RETINAL CRYOPROBE’, and the denomination ‘R2’. 

The circle on the crown is a place holder for the smaller tickey coin which when placed onto the crown, gives the impression of a retinal cryoprobe procedure.

Mass: 33.626g
Diameter: 38.725mm
Metal Content: Ag925 Cu75
Limited Edition: 1 000

2½C STERLING-SILVER TICKEY

The reverse of the tickey depicts a gloved hand holding the retinal cryoprobe, the letters ‘SPA’ for ‘Selig Percy Amoils’, and the denomination 2½c. 

When the tickey is placed onto the circle on the crown, it gives the impression of a retinal cryoprobe procedure.

Mass: 1,414g
Diameter: 16,30mm
Metal Content: Ag925 Cu75
Limited edition: 1 000

KRUGERRAND & CROWN LAUNCH SET

This special edition set contains a R2 sterling-silver Crown featuring the anatomy of the human eye, together with a 1oz fine-silver Krugerrand with the human eye as a privy mark. 

Limited edition: 500

CROWN OBVERSE
The national coat of arms, the words ‘South Africa’ in all the official languages, and the year of issue, ‘2020’, are featured on the obverse.
TICKEY OBVERSE
The obverse shows a king protea, the words ‘South Africa’ and the year ‘2020’.

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