SKU: 93263487904

Russian SVR Foreign Intelligence Cryptographic Service 100th Anniversary Badge – Rare Official Issue

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Russian SVR Foreign Intelligence Cryptographic Service 100th Anniversary Badge – Rare Official IssueOriginal Item Only One Available. Very rare official anniversary badge issued for the 100th anniversary of the Cryptographic Service connected to the Russian Foreign Intelligence Service (SVR), commemorating the period from 1921 to 2021. Badges associated with Russian SVR cryptographic structures are among the most difficult modern security service collectibles to acquire due to their highly restricted institutional nature and limited internal

Original Item – Only One Available. Very rare official anniversary badge issued for the 100th anniversary of the Cryptographic Service connected to the Russian Foreign Intelligence Service (SVR), commemorating the period from 1921 to 2021. Badges associated with Russian SVR cryptographic structures are among the most difficult modern security-service collectibles to acquire due to their highly restricted institutional nature and limited internal distribution.

The badge features an elaborate multi-layered construction combining silver and gold-toned elements with blue enamel surrounding a central globe-and-key motif, symbolizing encrypted communications, intelligence protection, and strategic information security. The circular inscription identifies the “Cryptographic Service” together with the centenary years “1921–2021,” while the lower portion prominently displays “100” in red enamel. The reverse retains the classic original screwplate.

The cryptographic divisions connected to Soviet and later Russian foreign intelligence structures played a critical role in secure diplomatic communications, coded intelligence transmission, and strategic information protection throughout the Cold War and modern era. Anniversary insignia tied to these specialized branches were typically awarded only to serving personnel, veterans, and select officials within closed intelligence communities, rarely reaching the public market. As interest in Russian intelligence memorabilia continues to grow worldwide, official SVR cryptographic service badges have become highly sought after by advanced collectors specializing in Cold War era communications, encryption history, and elite intelligence service awards.

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SKU: 93263487904

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4.5 ★★★★★
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Shannon
Massapequa, US
★★★★★ 5
The best DL/ML book I have ever seen!!
Format: Hardcover
Fantastic deep-learning book! The logic is very easy to follow, but the content is very thorough when it comes to explaining the theories behind it, making it perfect for beginners as well as math and CS students. The best DL/ML book I have ever seen!!
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Reviewed in the United States on November 30, 2025
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William P Ross
Draper, US
★★★★★ 5
Comprehensive Look At An Incredibly Complex Topic
Format: Hardcover
Deep Learning is an advanced book with great explanations and details. There is a heavy math focus with the book's beginning chapters detailing the necessary linear algebra and probability that one will need to understand deep learning. I liked that the author's chose to cover only the parts of these subjects which are relevant to deep learning. There are many interesting philosophical sections in the book as well. Just about when I was feeling overwhelmed with the complexity of the mathematics the authors take a step back and cover the foundations of deep learning such as borrowing concepts from human learning. There was an interesting dicussion about the early studies done on the vision of cat's and monkey's in the 1970s. The text covers the entire history of deep learning and the bibliography is hundreds of sources. It is clear this is the most comprehensive text available about deep learning. For anybody interested in this topic this book is a mandatory read. There are sections about machine learning as well, which makes sense because deep learning is a subset of machine learning. These sections focused on the machine learning concepts which are most relevant to deep learning. The book was well organized and divided into three parts which cover mathematics related to deep learning, typical deep learning techniques, and then more experiment learning techniques. Often the author's state when a technique works well or when it does not, and which types of data works best for the technique. Just a warning, the math in this book is highly complex. It requires a lot of work to go through this book, but the effort will be well rewarded.
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Reviewed in the United States on March 15, 2017
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Adam
Grantham, US
★★★★★ 4
Too Dry.
Format: Hardcover
This was a required textbook for my class in college. I think it was too dry. The book titled Deep Learning: From Curiosity To Mastery is much more approachable.
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Reviewed in the United States on May 22, 2026
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Amazon Customer
Lowell, US
★★★★★ 5
Comprehensive! The Bible of Deep Learning!
This book has by far surpassed my expectations! I have purchased many machine learning and deep neural network books in the past, but nothing has ever come close to this book! First of all, it is written by the fathers of Deep Learning, and is therefore an authority. Secondly, the book is broken into three parts: 1. A math overview and refresher. 2. Deep Learning applications and 3. Research in Deep Learning. I can't help but go through this book from front to back. It is a smooth read, and every sentence written is meaningful. These guys know their stuff! And after you read this book, YOU WILL ALSO know your stuff! If you feel daunted by the price, just remember, you get what you pay for! I'd say they could easily charge about $300+ for this book, but they are doing everyone a very kind favor by ONLY charging this reasonable amount. You get A LOT of bang for your buck with this purchase. I hesitated at first about buying this book because of the price, but I am soooooo happy that I did! Worth every penny! Look no further, get this book and start your Deep Learning journey!!
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Reviewed in the United States on July 14, 2017
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mackster
Carnegie, US
★★★★★ 1
A rushed, poorly written guide of how the "experts" can't really explain what Deep Learning is
Format: Hardcover
This book, in every sense of the word, is rushed. I think the authors wanted to establish themselves as leaders of this young-ish field, but does so by sacrificing quality. It also shows that Deep Learning theory has been there for a long time, known by another name called Neural Networks. The interesting algorithms are of MLP, Back Propagation and the classical neural networks. The optimization methods such as Adam are the ones that are new and interesting, and the only ones worthy of in this book. So, essentially, what you get from this book is use A for X, B for Y and C for Z type of dry, un-intuitive, badly written waste of paper. As for the structure of the book, it's like an example of how not to structure a book. It has some linear algebra, probability at the start (not good enough, and confuses more people and wastes paper). Goes on to prove other algorithms such as PCA (yeah, ok!). Then, talks about how this architecture works for this and that architecture. So, yeah, if you really want to try out deep learning, don't buy this book. Set up Tensorflow/pytorch/ other library, run the tutorials, find an architecture for the problem you are interested in and start tweaking that. You will have far more fun and would have saved your money. The praise that this book gets is beyond me. Did Musk even read this book? I doubt it.
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Reviewed in the United States on May 15, 2018

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