This is Mr. Nobuo Saiki's "Unknown Tanks of the World." It provides detailed explanations of obscure tanks from around the world, including the Odessa Tank, the Turán, and the T-13 and T-15 tanks. I believe this book is one of the few Japanese publications that provides detailed information on the Dutch T-13 and T-15. I accidentally bought two copies, so I'm selling one. - Title: Unknown Tanks of the World - Author: Nobuo Saiki - Illustrations: Shin Ueda - Content: Detailed explanations and illustrations of tanks - Price: 3000 yen Thank you for looking.