01 文獻
兩葉四頁：ff. 79r、79v 和 80r 是信的正文，f. 80v 是日期、結尾敬語、密碼署名和地址。後來一位蘇格蘭人在 f. 79r 上方題寫“ane Cipher lre from England in ye yeir 1569”。信用英語明文寫成，中間插入密碼短語，密文保留詞的分隔。行間解讀用的是較淺的墨水。在每頁左側完好無損，在右側水漬之下褪色到無法辨認。
02 密碼
這是一種逐字母替換，用看起來像拉丁字母的符號作為密碼符號，因此密文看上去像胡亂拼寫的英語。a、b、e、i、o、u 有同音符（w 寫成兩個 u 符號），人物各有單獨的符號：N = 蘇格蘭女王瑪麗，W = 英格蘭女王，L = 閣下，還有另外幾個（Z、M、La、⊔），其所指在註釋中沒有儲存下來。明文 → 密文：a q/ħ、b r/K、c B、d ε、e α/ε、f a、g б、h c、i ∂/4、l f、m g、n ɧ、o 7/i、p k、r m、s n、t o、u p/Δ、x y、y x。金鑰是 Tomokiyo 的，在這裡解密的每個詞上都無需改動即可成立。
03 文字
明寫部分用正體，解讀出的段落用斜體。[?] 表示未能可靠解密的詞，方括號中的符號是人名符號。頁序為 ff. 79r、79v、80r、80v。
f. 79r. What was intended and resolved here concerning the [N，蘇格蘭女王瑪麗] [?] for her restauration, as for the disposition of her in marriage, your [L，閣下] … thoroughly understand by Mr John Woodes narration. Since which time you did hear also by a letter sent from me to the Lord of Liddington in your [?] of the same matter absolutely and breefly … How your frendes which here aforesaid were of a contrarie minde for the whole, were violently constrained and by great necessitie urged to condescend and thereunto. So as now my good Lord the matter is not in state of deliberation, but rather requires expedite [?], having good opportunitie for execution. With further by all convenient means I doe wishe that you should concurre with your frendes [Z] here, who see so far into your case, and are so content for the same, as they desire nothinge so earnestlie as your Lordship's pr[ocuring] in that matter, and that to be donne in suche sorte, both for the [符號] and good affection, as it may not appear after [若干符號] to the [N] or to such as have interest in her, that you will doe nothinge frendly but compulsorilie, whereby the frendship, good affection borne you and thestimacion of you shalbe changed into worse conceiptes, and so gradatim your happines, tranquillitie, and anie good else, shalbe turned into turmoile, calamitie, and division, and the prosperitie of your neighbours and frendes eyther converted into greate dissention, or into a miserable transformation. Now (as matters have ben used and conducted) the protestants your frendes have credit and meanes to assure all things there and here in good termes. And suche may be your impugninge or [double?] proce[edinge] …
f. 79v. … as yours and ours adversaries shall [符號] possess the instrument [?], and all other circumstances to the ruine of Religion, you, and your countrey also, and to worke the lyke effectes amongest us moost dangerouslye. You may perhaps amongest other perswasions be moved to thinke, that as you find a faction there to impugne their designe, so there shall not want Instrumentes and a party here to runne the same course. My Lorde I will not dissemble with you, and if I would you can gesse at the truthe. Some there be [符號] graunt which will to their [Z] power withstand this matter. Others will geve the lokinge on; and some will cary twoe faces in a hoode, lokinge which way the matter is lyke to wende. [M] Of all these sortes that will the end, to hasten apace, not to be lefte alone, [符號] when they shall see the ablest and the greatest runne and concurre together in the favour of the [N, M, La] for the purposes aforesaid. And albeit you may thinke [W，英格蘭女王] will not so hastily favour her promotion, yet youre experience paste dothe teache you that [W] could never accord her overthrow, or be contented to see her lyfe dispossessed of her state. For I graunt, if her majestie would have runne the direct course against her, perhaps the same would have taken good successe, but this neutralitie can not stande as the worlde standeth. Some light you maye see and thereby conjecture the reste by her majesties letter written to you [符號] at that time, whereby also you may be resolved of what affections they
f. 80r. they be in this matter which have the principall credit about her. [若干符號] I can assure your lordship there is not one, no, not one, which are of moment, that dothe not allow of this case, and maketh hast to shew his gratitude, leste he might be demed slowe. If I could by anye other course espye anye other thinge than your owne overthrowe, I would not write so peremptorilie unto you, neyther perswade you to geve place where peradventure your conscience may be combred, and some question of overprecise objections may arise to calle your honor in dowbte. We see so far to the beginninge, the middeste and the endinge, and doe forsee all dangers and eventes, as I thinke you can not, but [?] yourself to concurre with your frendes. Therefore settinge aside argumentacion, [Z, La, 符號] wishe you should with speed [?] send hither the Lord of Liddington, who undoubtedly is both the wysest and the sufficientest man you may send to provide for you and all the reste substancyally and assuredly. And when you shall leave to be advised by him and to truste him, you shall procure unto yourselfe greatteste perill, and to the whole state of your countrey the grettest hazarde. No mans frendship will be more imbraced than yours, no mans estimacion more preserved. [符號] Contrarywise, if you desist or become an adverse party, you will be so incombred both from hence, from thence, and from all other places, your neighbours, as no man can advise you what to doe. Therefore God send you to directe your course for the beste. And so I commit you and all yours
f. 80v. to almighty Gods counsell. At Grenew. the 20th of July 1569. Your L. to use and commande, N. Throkmorton. 地址：“Lorde Regent of Scotlande”。
04 方法
這條記錄來自總目中按規則打分的 DECODE 部分。首先查了 Bain。他的第1103號與館藏號、地址和“in cipher deciphered”都對得上，由此確定了發信人和日期。四幅 DECODE 圖片，以及歸檔在該記錄下的 Tomokiyo 金鑰圖片，是用 DECODE 賬號登入後獲取的。先在約二十個註釋尚存的詞上確認了金鑰（and, the, your, frendes, intended, resolved, concerning, restauration, disposition, aforesaid, condescend, should, Liddington）。然後根據全解析度掃描件的半行裁切圖轉錄每段密文，並手工解密。凡註釋可辨讀處，都與解碼結果一致。
05 仍不確定的部分
- 人名符號 Z、M、La、⊔ 和帶橫槓的4未能確定。它們周圍的註釋已經褪色，金鑰表中也沒有列出。N（蘇格蘭女王瑪麗）和 W（英格蘭女王）有註釋（H）。
- f. 79r 上第一個 N 之後的詞、f. 79r 第4行“in your”之後的詞、“expedite”之後的詞（註釋作“having”）、“[double?] proce[edinge]”、f. 79v 上“instrument”之後的詞，以及 f. 80r 上“yourself”之前和“send”之前的動詞，均評為 M。斜體中的其餘內容都是 H 或 C：逐字母解碼無誤，凡註釋尚存處都與之一致。
- DECODE 給出的7月26日是錯的：信上寫的是7月20日。f. 80v 頁尾的批註“9 of aug”很可能是收信日期。
06 來源
- British Library，Add MS 33531 ff. 79–80；圖片經DECODE R8348（需登入）。
- J. Bain（編），Calendar of the State Papers relating to Scotland and Mary, Queen of Scots第二卷（1900），第1103號，第661頁（archive.org
CalendarStatePapersMaryQueenOfScotsVol2). - S. Tomokiyo，“Throckmorton-Moray Cipher (1569)”，cryptiana: Ciphers of Mary, Queen of Scots；同一金鑰也作為文件檔案存於 DECODE R8348（2024年9月18日）。
註釋、完整讀法和檔案資訊見程式碼倉庫資料夾 targets/throck1569/.