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Description
1980 Queen Elizabeth II Proof Gold Half Sovereign + Capsulated / Case1980 Queen Elizabeth II Proof Gold HALF Sovereign + Encapsulated within Luxury Case and COA. Limited edition especially struck proof sovereign in original royal mint issue case, air tight screw capsule and certificate of authenticity. The proof sovereign differs from the standard sovereign issued or bullion type in that this coin is in perfect proof condition free of finger prints, scratches, and other blemishes. The proof sovereign is also specially
1980 Queen Elizabeth II Proof Gold HALF Sovereign + Encapsulated within Luxury Case and COA.
Limited edition especially struck proof sovereign in original royal mint issue case, air tight screw capsule and certificate of authenticity. The proof sovereign differs from the standard sovereign issued or bullion type in that this coin is in perfect proof condition free of finger prints, scratches, and other blemishes. The proof sovereign is also specially dipped during the the minting process to produce the iconic frosted raised features on both obverse and reverse.
Queen head facing right wearing a coronet, The initials of the designer do not appear and the truncation is blank. St.George mounted with sword attacking the dragon, streamer flowing from St George's helmet. The date appears below the exergue line at the bottom with the letters B.P. to the right.
Obverse Legend: ELIZABETH.II.DEI.GRATIA.REGINA.F:D:
Milled: Rev: BP: Benedetto Pistrucci
Weight 3.99 grams Contains 0.1177 of 1 Troy Oz Gold
We endeavour to keep all years available, the image is of the coin you will receive some years may not be available due to rarity, if you are interested in the rare examples not on offer here, please contact us
Should you not be entirely happy with your purchase you may return it for a full refund, please see our returns section for more information.
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4.4 ★★★★★
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Product Reviews
★★★★★ 2
Just linear
Format: Paperback
I appreciate that it helps to organize the chaos of information, but I just used the template verbatim with my manager and it did not go very well. He said this linear approach does not work anymore with high-level corporate audiences. They want to cut right to the chase and start to dig into the deep details. This layout with simple images, even if you just pull away the map and anchor slides, makes the storytelling too much like a story, not giving enough credit to the speed at which certain audiences can and do process data on a slide. It was an interesting exercise and I still think this linear layout works in some cases. Just not if you are trying to communicate business case or other C-suite type of information.
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Reviewed in the United States on March 4, 2021
★★★★★ 5
Excellent AI security book
Format: Paperback
A necessary book for those who in work in the AI Security field. It is easy to read and easy to follow along with practice labs. The author did a good job incorporating the breadth of AI threats.
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Reviewed in the United States on January 10, 2026
★★★★★ 5
A good book for Cyber Professionals
Format: Paperback
A very good book, I absolutely love how it gives security professionals much needed AI security insights.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
In-depth and highly technical!
Format: Paperback
"Adversarial AI Attacks, Mitigations, and Defense Strategies" by John Sotiropoulos is a must-have resource for cybersecurity professionals navigating the complexities of AI security.
This book is an incredibly in-depth guide that tackles the intricate details of defending AI systems from adversarial attacks. It’s highly technical, making it an excellent choice for those with a solid background in cybersecurity, machine learning, and system administration. Sotiropoulos doesn’t shy away from the details, providing comprehensive code examples, system admin settings, and scripts that are invaluable for practical implementation.
One of the standout aspects of this book is its coverage of both predictive and generative AI. This dual focus ensures that readers are well-equipped to handle security challenges across different AI applications. Whether you're dealing with machine learning models in a predictive context or exploring the relatively newer field of generative AI, this book has you covered.
If you’re looking for a technical, hands-on approach to securing AI systems, this book is an essential addition to your library.
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Reviewed in the United States on August 12, 2024
★★★★★ 4
Good and thorough!
Format: Paperback
I was amazed to see a thick book arriving in the package and spent quite some time reading this. The book is so hands-on. I build agentic systems at work and going through these concepts felt good. My only complaint is that the code snippets are not up to date for which I had to edit my code several times.
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Reviewed in the United States on May 9, 2026