Problem 129 — crackciphers.com

Eighteen postcards grouped around the name Fritz Lehmann are held in the Historical Cryptology Portal. Their message fields contain period-separated numbers, sometimes broken by ordinary handwriting. Catalogue association alone does not establish a single sender; the fields, signatures, dates, and addresses must be considered object by object.

The packet includes HCP913, 978–979, 1041–1051, 1059–1060, 1113, and 1134. Dated messages in the documented set extend through 1908–1911; some individual dates are unknown. One field has five extremely pale longhand lines beneath a number block. Other cards preserve corrections, overbars, or numbers crossing physical line breaks.

The recorded source fields and their limits are given below. The original records are listed here. Can the private passages be read without silently improving their spelling or treating the catalogue grouping as proof of one correspondence?

Recorded source transcriptions

Five objects have complete physical numeric extents that can be reproduced from the saved source ledgers. Uncertain numerals stay bracketed; ordinary prose is identified separately. For the other fields, the original object is needed to inspect the writing.

Date	Event
2026-09-08	Public page prepared from the campaign record

Original records
HCP913, HCP978, HCP979, HCP1041, HCP1042, HCP1043
HCP1044, HCP1045, HCP1046, HCP1047, HCP1048, HCP1049
HCP1050, HCP1051, HCP1059, HCP1060, HCP1113, HCP1134

Object	Source transcription available here
HCP913	Saved full numeric inventory contains unreconciled discrepancies; not promoted as a faithful final transcript
HCP978	Recorded complete numeric extent reproduced above; all physical uncertainties retained
HCP979	Recorded complete numeric extent reproduced above; all physical uncertainties retained
HCP1041	Full character ledger not present in the saved final edition; original image required
HCP1042	Full character ledger not present in the saved final edition; original image required
HCP1043	Full character ledger not present in the saved final edition; original image required
HCP1044	Recorded complete numeric extent reproduced above; all physical uncertainties retained
HCP1045	Recorded complete numeric extent reproduced above; all physical uncertainties retained
HCP1046	Full character ledger not present in the saved final edition; original image required
HCP1047	Full character ledger not present in the saved final edition; original image required
HCP1048	Full character ledger not present in the saved final edition; original image required
HCP1049	Full character ledger not present in the saved final edition; original image required
HCP1050	Full character ledger not present in the saved final edition; original image required
HCP1051	Full character ledger not present in the saved final edition; original image required
HCP1059	Full character ledger not present in the saved final edition; original image required
HCP1060	Recorded complete numeric extent reproduced above; all physical uncertainties retained
HCP1113	Full character ledger not present in the saved final edition; original image required
HCP1134	Full character ledger not present in the saved final edition; original image required

HCP1044, recorded numeric rows

R1  2.4.9 - 7.18.10.20.26.6 - 13.2.24 - 13.21.19 -
R2  3.12.15.19.26 - 11.6.10.14 - 11.10.14.5 -
R3  5.6.14.14 - 5.21 - 23.6.10.19.26.20 - 23.10.6 -
R4  13.6.10.14.6 - 6.12.20.6.18.14 - 19.10.14.5 - 13.2.4.9 -
R5  13.10.14.14 - 19.16.2.20.6.18 - 15.5.6.18 - 7.18.21.9.6.18 -
R6  13.10.20 - 5.6.19 - 2.12.20.6.14 - 14.3.6.18.26.10.6.9.6.14
Sig.  13.2.18.10.6

HCP1045, recorded numeric rows

Dots and dashes retain the recorded numeral divisions and larger gaps. A short overbar on one 14 and a crossed/corrected 8 are written marks, preserved as such.

R1  12.10.6.3.6.18 - 7.18.10.20.26
R2  6.3.6.14 - 5.6.10.14.6 - 11.2.18
R3  20.6 - 6.18.9.2.12.20.6.14 - 21.3.6.18
R4  23.2.19 - 10.19.20 - 5.6.14[overbar] - 5.2.19
R5  7.21.18 - 6.10.14 - 7.15.20.15 - 23.2.18
R6  6.19 - 5.6.18 - [crossed/corrected 8].6.5.2.14.11.6
R7  10.19.20 - 5.2.19 - 5.10.6
R8  8.18.6.21.5.6 - 2.21.7 - 13.6.10
R9  14.6 - 8.6.19.21.14.5.9.6.10.20
R10  13.10.20 - 11.21.19.26
R11  19.21.19.10

HCP1060, recorded numeric rows

Dots and dashes retain the recorded numeral divisions and larger gaps. The five lower cursive baselines cannot be transcribed as connected text; only their terminal open signature is secure.

R1  12.10.6.3.6.18 - 7.18.10.20.26 - 22.10.6.12.6.14
R2  5.2.14.11 - 7.21.18 - 5.6.10.14.6 - 11.2.18.20.6.14
R3  9.2.3.6 - 9.6.21.20.6 - 5.6.14 - 2.18.26.20 - 8.6.7.18.2.8.20 - 15.3
R4  10.4.9 - 11.2.14.14 - 19.15.14.14.2.3.6.14.5 - 2.21.19.8.6.9.6.14
R5  3.10.14 - 2.12.19.15 - 3.10.19 - 19.15.14.14.2.3.6.14.5 - 13.10.20.20.2.8 - 7.18.6.10

[Five faint ordinary-handwriting lines]
[H1 unreadable]
[H2 unreadable]
[H3 unreadable]
[H4 unreadable]
[H5 unreadable] ... deine Liese.

HCP978, complete physical numeric extent

Brackets retain uncertain or overwritten source values. These are physical transcription limits; no missing numerals have been supplied to make a word.

HCP979, complete physical numeric extent

Brackets retain uncertain or overwritten source values. These are physical transcription limits; no missing numerals have been supplied to make a word.

R1   12.10.6.3.6.18 / 7.18.10.20.26
R2   9.6.21.20.6 / 8.6.9.20 / 6.19
R3   23.10.6.5.6.18 / 3.6.19.19.6.18
R4   23.6.10.19.19 / 2.3.6.18 / 14.15.4.9
R5   14.10.4.9.20 / 23.10.6 / 6.19 / 9.6.21.20.6
R6   2.3.6.14.5 / 19.6.10.14 / 23.10.18.5
R7   8.6.19.20.6.18.14 / 9.2.20.20.6
R8   10.4.9 / 19.20.2.18.11.6
R9   [19-like crossed mark?] / 7.10.6.3.6.18 / + / [19?].15.12.12.6
R10  10.4.9 / 14.10.4.9.20

Resources

Solutions

#	Solution	By	Status
1	Solution 129-1 A reading, written up in full	@offgramercy	ACCEPTED

Still open: Three items retain damaged signs or erased longhand; one literal message remains grammatically corrupt

Fritz Lehmann Correspondence

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