Commissioners reviewed reverse designs for the four American Innovation dollars scheduled to be released in 2028 and obverse and reverse designs for the 2027 issues in the Comic Art Coin and Medal Program.
Obverse Description
English text; coat of arms; Cape buffalo as registration device; Nelson Mandela
Reverse Description
Text in English, Northern Sotho, and Tsonga; young Madiba wearing traditional attire; stone pile on Robben Island
Catalog Information
GSID:
135210
Variety:
2018 Sig 10: Kganyago Prefix SA - SM Intro: 18 07 2018
BNB #:
B775a
Pick #:
P146
Send Catalog Feedback
Subject: I would like to contribute catalog info to CDN for 2018 Sig 10: Kganyago Prefix SA - SM Intro: 18 07 2018
Body: Referring page: http://www.greysheet.com/prices/item/2018-sig-10-kganyago-prefix-sa-sm-intro-18-07-2018/gsid/135210 GSID: 135210 Title: 2018 Sig 10: Kganyago Prefix SA - SM Intro: 18 07 2018
Subscribe to View
Log In
View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.
Bank Note Value History
2018 Sig 10: Kganyago Prefix SA - SM Intro: 18 07 2018
Currency
Grade Range
Sort by
Pricing
Values
Banknote Book (CPG) Values
30 November 1921 - 31 January 1922 Sig 1: Clegg Prefix E/1 - E/3
Worth: $1,200 – $1,200
Horizontal CANCELLED perf; s/n range
30 November 1921 - 31 January 1922 Sig 1: Clegg Prefix E/1 - E/3
Worth: $1,200 – $1,200
17 September 1921 - 5 July 1922 Sig 1: Clegg Prefix A/1 - A/12
27 September 1921 - 6 July 1922 Sig 1: Clegg Prefix B/1 - B/3
Worth: $500 – $1,500
Diagonal black SPECIMEN ovpt front/back; all-zero s/n
29 September 1921 Sig 1: Clegg Prefix C/1 (C/2 unissued)
30 September 1921 Sig 1: Clegg Prefix D/1 (D/2 unissued)
Diagonal black SPECIMEN ovpt front/back; all-zero s/n
20 September 1926 - 15 December 1926 Sig 1: Clegg Prefix E/4 - E/6
Two diagonal black SPECIMEN ovpts front; no s/n
1 September 1925 - 4 April 1928 Sig 1: Clegg Prefix A/13 - A/17
Worth: $375 – $375
7 April 1926 Sig 1: Clegg Prefix B/4
1 September 1928 - 9 September 1931 Sig 1: Clegg Prefix E/7 - E/11
Worth: $325 – $325
2 April, 1932 with 17 November, 1931 ovpt Prefix E/12
Worth: $325 – $325
Greysheet News
Greysheet Podcast: A Coin Dealer Who Buys Over 500,000 Silver Dollars a Year [Video]
Greysheet Podcast Featuring John Feigenbaum, Hunter Hicks, and Stephen Yaffe
11/6/2026
Weekly World Mint Coinage: November 5, 2026
New coins from Austria, Hungary, and the United Kingdom.
11/5/2026
Events
Heritage Auctions: US Currency Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World Paper Money Tuesday Select Auction
Location: Heritage Auctions
Tuesday, September 1, 2026
Heritage Auctions: World & Ancient Coins ANA Signature Auction & Platinum Session
Location: Heritage Auctions
Tuesday, September 1, 2026

![Greysheet Podcast: A Coin Dealer Who Buys Over 500,000 Silver Dollars a Year [Video]](https://images.greysheet.com/l/blogs/20261106/7da06212-52a0-4221-a1cc-7e9ca442662f.jpg)



