{"product_id":"top-secret-ultra-9780947712419","title":"Top Secret Ultra","description":"\u003cdiv class=\"book-description\"\u003e\n\u003cp\u003e\u003cstrong\u003eTop Secret Ultra\u003c\/strong\u003e by Peter Calvocoressi. Paperback edition. ISBN: 9780947712419.\u003c\/p\u003e\n\u003cp\u003eFirst published in 1980, this is one of the very few books written by someone who worked at Bletchley Park for much of the war. Its author was one of the team working in Hut 3, whose task was to translate decrypted German Army and Air Force signals, and assess their intelligence value. This new edition, while substantially rewritten and revised, remains a valuable personal account or personal experience.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Brand: M.n M.Baldwin","offers":[{"title":"Default Title","offer_id":45113708478517,"sku":"ByrdShop_0947712410","price":226.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8139\/0901\/files\/9780947712419_566fdb1a-4c24-4b4b-8da9-5238848249ea.jpg?v=1776460099","url":"https:\/\/atxbooks.com\/products\/top-secret-ultra-9780947712419","provider":"ATX Books","version":"1.0","type":"link"}