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Description
India-British George V 1921 (C) 1/12 Anna Calcutta NGC UNC DETAILS KM# 509 (030)COUNTRY REGION OF MANUFACTURE : India CERTIFICATION NUMBER : 6461454 030 FINENESS : Bronze CERTIFICATION : NGC GRADE : UNC DETAILS YEAR : 1821 CIRCULATED UNCIRCULATED : Uncirculated COMPOSITION : Bronze HISTORICAL PERIOD : British DENOMINATION : 1 12 ANNA KM NUMBER : KM# 509 India British George V (1910 1936) Bronze 1921 (C) 1 12 Anna Calcutta Mint GRADED NGC UNC DETAILS. CLEANED KM# 509 Obverse: Crowned bust left Obverse Legend: GEORGE V KING EMPEROR
- COUNTRY/REGION OF MANUFACTURE : India
- CERTIFICATION NUMBER : 6461454-030
- FINENESS : Bronze
- CERTIFICATION : NGC
- GRADE : UNC DETAILS
- YEAR : 1821
- CIRCULATED/UNCIRCULATED : Uncirculated
- COMPOSITION : Bronze
- HISTORICAL PERIOD : British
- DENOMINATION : 1/12 ANNA
- KM NUMBER : KM# 509
India-British
George V (1910-1936)
Bronze 1921 (C) 1/12 Anna
Calcutta Mint
GRADED NGC UNC DETAILS.CLEANED
KM# 509
Obverse: Crowned bust left
Obverse Legend: GEORGE V KING EMPEROR
Reverse: Date and denomination within circle, wreath surrounds
Please check out my other listings and we will be happy to combine in one package !
YOU WILL RECEIVED THE SAME COIN AS PICTURED.
ALL COINS ARE AUTHENTIC AS DESCRIBED.
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4.5 ★★★★★
Based on 769 reviews
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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.
WAS THIS REVIEW HELPFUL?YesReportShare
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.
WAS THIS REVIEW HELPFUL?YesReportShare
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.
WAS THIS REVIEW HELPFUL?YesReportShare
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
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