01 文献
两叶四页：ff. 79r、79v 和 80r 是信的正文，f. 80v 是日期、结尾敬语、密码署名和地址。后来一位苏格兰人在 f. 79r 上方题写“ane Cipher lre from England in ye yeir 1569”。信用英语明文写成，中间插入密码短语，密文保留词的分隔。行间解读用的是较浅的墨水。在每页左侧完好无损，在右侧水渍之下褪色到无法辨认。
02 密码
这是一种逐字母替换，用看起来像拉丁字母的符号作为密码符号，因此密文看上去像胡乱拼写的英语。a、b、e、i、o、u 有同音符（w 写成两个 u 符号），人物各有单独的符号：N = 苏格兰女王玛丽，W = 英格兰女王，L = 阁下，还有另外几个（Z、M、La、⊔），其所指在注释中没有保存下来。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。密钥是 Tomokiyo 的，在这里解密的每个词上都无需改动即可成立。
03 文本
明写部分用正体，解读出的段落用斜体。[?] 表示未能可靠解密的词，方括号中的符号是人名符号。页序为 ff. 79r、79v、80r、80v。
f. 79r. What was intended and resolved here concerning the [N，苏格兰女王玛丽] [?] for her restauration, as for the disposition of her in marriage, your [L，阁下] … 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 [符号] and good affection, as it may not appear after [若干符号] 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 [符号] 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 [符号] 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, [符号] 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，英格兰女王] 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 [符号] 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. [若干符号] 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, 符号] 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. [符号] 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
这条记录来自总目中按规则打分的 DECODE 部分。首先查了 Bain。他的第1103号与馆藏号、地址和“in cipher deciphered”都对得上，由此确定了发信人和日期。四幅 DECODE 图片，以及归档在该记录下的 Tomokiyo 密钥图片，是用 DECODE 账号登录后获取的。先在约二十个注释尚存的词上确认了密钥（and, the, your, frendes, intended, resolved, concerning, restauration, disposition, aforesaid, condescend, should, Liddington）。然后根据全分辨率扫描件的半行裁切图转录每段密文，并手工解密。凡注释可辨读处，都与解码结果一致。
05 仍不确定的部分
- 人名符号 Z、M、La、⊔ 和带横杠的4未能确定。它们周围的注释已经褪色，密钥表中也没有列出。N（苏格兰女王玛丽）和 W（英格兰女王）有注释（H）。
- f. 79r 上第一个 N 之后的词、f. 79r 第4行“in your”之后的词、“expedite”之后的词（注释作“having”）、“[double?] proce[edinge]”、f. 79v 上“instrument”之后的词，以及 f. 80r 上“yourself”之前和“send”之前的动词，均评为 M。斜体中的其余内容都是 H 或 C：逐字母解码无误，凡注释尚存处都与之一致。
- DECODE 给出的7月26日是错的：信上写的是7月20日。f. 80v 页脚的批注“9 of aug”很可能是收信日期。
06 来源
- British Library，Add MS 33531 ff. 79–80；图片经DECODE R8348（需登录）。
- J. Bain（编），Calendar of the State Papers relating to Scotland and Mary, Queen of Scots第二卷（1900），第1103号，第661页（archive.org
CalendarStatePapersMaryQueenOfScotsVol2). - S. Tomokiyo，“Throckmorton-Moray Cipher (1569)”，cryptiana: Ciphers of Mary, Queen of Scots；同一密钥也作为文档文件存于 DECODE R8348（2024年9月18日）。
注释、完整读法和档案信息见代码仓库文件夹 targets/throck1569/.