a Shipp sent to 2 0 ‡ H 6 1 · the ship may stay at 2 ɔ ǂ 6 r y · the Port of 2 0 ǂ 6 ɔ Δ · = VALERY

Westminster → Paris · homophonic letter cipher and name codes in a clear letter · early 1573

Burghley to Walsingham, early 1573: the ship sent to St Valery

William Cecil
fromWilliam Cecil
Francis Walsingham
toFrancis Walsingham

BL Harley MS 260 f. 419r–v (DECODE R8364, catalogue 122), listed as “Unknown sender to …, Feb 1572”. It is a copy in Walsingham’s embassy letter-book of Burghley’s letter answering Walsingham’s of 20 January 1573. The letter is in clear English except for name codes and two short cipher runs.

The six-sign run is a place name that Digges printed in four letters of the same winter. Comparing the five copies, which use different homophones, with Walsingham’s file gives VALERY, the Channel port of Saint-Valery-sur-Somme. That word is the only cipher text recovered (6 of 26 cipher tokens); no decipherment of the letter was found in print or on DECODE.

Daniel Bourdeau · posted · updated

Method: key recovered based on plaintext from external sources · Extent: partial (23% of the cipher)

Summary. DECODE R8364 is two pages of a fair-copy letter-book, not an original. The ciphered letter is Burghley to Walsingham, written late in January or early in February 1573. It answers Walsingham’s letter of 20 January 1573 (R8363) about a gentleman of the Archbishop of Glasgow, Mary Stuart’s ambassador in Paris, who was trying to cross to England. Dudley Digges printed the letter in The Compleat Ambassador (1655, p. 327) with the cipher left as signs. An earlier attempt counted about 25 cipher signs here and closed the letter as too short. A second search found every cipher passage in Digges’s volume, about 45 of them over 1570–73. The same six-sign word turns up in two Burghley and two Walsingham letters about that ship, always six signs long, with the same first and third signs and changing signs elsewhere. Walsingham’s own file of these months, Cotton MS Vespasian F VI, holds “a French letter earnestly desiring that a ship might be kept in waiting at St. Valery” (11 Dec 1572). The word is VALERY (grade M, probable). The rest stays open: a nine-sign run, three person codes and the cover-name markers. The key of 1571 survives at the National Archives (SP 106/2 f. 141A), and the sent letter is in Cotton Vespasian F VI. Neither is online.

01 The record

Harley MS 260 is a later fair copy of Walsingham’s Paris correspondence of 1570–73, one letter after another with their addresses, under running heads by month. Folio 419r opens with the end of Walsingham’s own letter of 6 February 1572 (old style), in which he asks to be relieved. Then comes the address “To the right honorable Mr Fraunces Walsingham Esq, the Queenes Maiesties Amba[ssador] in Fraunce”, and the letter beginning “Sir I have receaved yor lres of the xxth of this month with the tickett after yor accustomed manner contayning [9]”. The copy breaks off at the foot of f. 419v with a struck-out “finis”. Digges printed it from another copy, with the rest of the letter (Worcester’s dishonour off Boulogne, the French libel against Burghley, Walsingham’s letters of the 24th), under the running head “The Lord Burleigh to Fr. Walsingham”.

DECODE’s sender (“unknown”), recipient (“…”) and date (February 1572) come from the letter-book’s old-style year and the address line. The letter is Burghley’s, to Walsingham, of late January or February 1573.

02 The cipher in the letter

Harley MS 260 f. 419r: of a Shipp sent to 2 0 cross H 6 1 tt ymagined that Hall three had a meaninge to provoake Glascoe [9] to come hither
f. 419r: “for by Davisons writinge of a Shipp sent to 2 0 ‡ H 6 1 tt ymagined that Hall three had a meaninge to provoake Glascoe [9] to come hither”. Image: British Library, Harley MS 260 f. 419r, via DECODE R8364.
PlaceHarley 260Digges 1655What it is
“contayning …”, “sent from …”, “Glascoe …” ×2, “the ruyn of …”[9] ×5|9|, |c|the boxed mark the letter-book sets after a cover-name, or in place of a name it does not copy
“Glascoe …”, “Hall …” ×23 (“three”)ξ, 3, ȝthe same marker after a name
“yf … should soe doe”3ȝa person code, unread
“a Shipp sent to …”2 0 ‡ H 6 120 ǂ H Ꭾ )a place: VALERY
“… ymagined”ttℵa person code, unread
“to enquire …”^ 4 d H m 11 11 I Jx. 7. D. H. m. 11. ⊏. 𝔗. ᘓ.nine signs, unread
“that … had gotten such knowledge”II|—|a person code, unread
Harley MS 260 f. 419v, first two lines: some assurance yf 3 shoulde soe doe to enquire, then nine cipher signs
f. 419v, ll. 1–2: “some assurance yf 3 shoulde soe doe to enquire ^ 4 d H m 11 11 I J. This you must thinke…” Image: British Library, Harley MS 260 f. 419v, via DECODE R8364.

The names in clear are cover-names or real names of the Glasgow affair of November 1572 to February 1573: Glasgow (James Beaton, Archbishop of Glasgow), Davison, Hall. The boxed marks follow such names throughout the letter-book (see R8361 and R8362). Only the two runs are letter cipher.

03 The place name: VALERY

Digges printed the cipher of Walsingham’s correspondence in cipher type; the earlier attempt had taken it for figures. A search of all 457 page images of his volume, first by the OCR’s word confidence and then by two page-by-page scans, found about 45 ciphered passages in the letters of 1570–73. Four of them are the same word, in letters about the one ship:

LetterContextDiggesHarley 260
Burghley, Westminster, 11 Nov 1572 (p. 301)“he hath required me to provide a passenger to attend at Harwich. Le the Port of …”2 0 ǂ 6 ɔ Δ
Walsingham, Paris, Nov 1572 (p. 303)“he desireth that the ship may stay at … 9 or 10 days”2 ɔ ǂ 6 r y
Walsingham, Paris, 20 Jan 1573 (p. 313; R8363)“a Gentleman of [9] departed hence to … with intention to imbarque there”2 ) ⌘ Ꭾ ) 42 1 ⌘ ε 9 4
Burghley, early 1573 (p. 327; R8364)“by Davisons writing of a ship sent to …”20 ǂ H Ꭾ )2 0 ‡ H 6 1

Every copy has six signs. The first is always 2 and the third always the same crossed sign (ǂ, ⌘ and ‡ are the founts’ and the copyist’s versions of it). The other four places change from copy to copy. That is what a homophonic alphabet gives when one word is written several times. The place is a French port where a ship waits for passengers bound for England, with Harwich on the English side. The Nov 1572 letter has Walsingham ask that the ship may stay there nine or ten days. Cotton MS Vespasian F VI, the volume of Walsingham’s letters and drafts of 1572–73, holds at f. 197 “A French letter; earnestly desiring that a ship might be kept in waiting at St. Valery. Dec. 11”. VALERY has six letters, and Digges’s copy of the Walsingham letter even ends in a plain “r y”:

V = 2 · A = 0, ɔ, ), 1 · L = ǂ, ⌘, ‡ · E = 6, Ꭾ, H, ε · R = ɔ, ), r, Ꭾ, 9, 6 · Y = Δ, y, 4, ), 1

A few signs turn up under two letters (ɔ/) under A and R, 1 under A and Y). They are the places where Digges’s type and the letter-book copyist blur distinct manuscript signs, which the Digges and Harley copies of the same letters show. The reading does not depend on them. Dieppe, the other six-letter port, needs a different sign for each of its two Ps and two Es in every copy, and nothing in the sources points to it. Harwich, Dover, Calais and Dieppe are all written in clear elsewhere in these letters.

Grade M (probable). No source gives the alphabet; the length, the fixed signs, the “ry” and the St Valery ship in Walsingham’s file all point to this word. With it the passage runs:

I see there was a great mistaking of our doings, for by Davison’s writing of a ship sent to [St] Valery, [tt] imagined that Hall had a meaning to provoke Glasgow to come hither; whereupon this last gentleman came to enquire of Hall some assurance, if [3] should so do, to enquire […]. This you must think must needs appear very strange.

The same identification applies to Walsingham’s group of 20 January in R8363, where the Glasgow gentleman “departed hence to [St] Valery with intention to imbarque there if the barque were not departed”.

04 What was tried for the rest

05 What remains

Of 26 cipher tokens, the six of the place name have a value (23%, grade M). SP 106/2 f. 141A, or a photograph of Cotton Vespasian F VI ff. 172–247, would probably give the rest of this letter and of its siblings R8356, R8358 and R8361, together with the 45 passages in Digges.

06 Sources

Notes, transcription, the list of Digges’s cipher passages and the profile: r8364/.