Sources & bibliography

Every source has a job—and a boundary.

A useful historical fact and permission to republish a database are not the same thing. This inventory records both evidence quality and reuse status.

Rights policy

Historical facts may be independently normalized. Copyrighted expression, photographs, scans, layout, branding, and wholesale databases are not imported without a documented license or permission. Unclear sources remain in verification or review status.

This assessment supports editorial risk management and is not legal advice.

Inventory

authoritative secondary · fact normalization only

Leica Lists / Leica Pocket Book

Erwin Puts · 2010-02 · Accessed 2026-08-06

Coverage
Detailed camera and lens allocation lists through 2006, plus model tables and special-series notes.
Material
Detailed factory-list transcription and explanatory material
Known limits
Transcribed from handwritten factory documents; the author notes occasional educated guesses, unused allocations, and disagreement with other lists.
Rights finding
Copyright status not accompanied by an express reuse license in the reviewed PDF.
Decision
fact normalization only
Use in this project
Historical allocation facts are independently normalized into a new schema with page-level provenance. The PDF's prose, page layout, ordering, typography, and table presentation are not reproduced.

community · fact normalization only

Serial Numbers Leica Cameras

Leica Wiki / L-Camera Forum community · Accessed 2026-08-06

Coverage
Camera serial blocks from prototypes through early digital cameras.
Material
Detailed model allocations with year labels
Known limits
Community-edited compilation; page-level reuse license was not located during review and some entries conflict with Puts.
Rights finding
Reuse terms unclear.
Decision
fact normalization only
Use in this project
Used only to independently confirm individual historical facts and expose disagreements. No page text or wholesale table imported.

specialist secondary · verification only

Leica Serial Numbers: M and R Sorted by Number

Stephen Gandy · CameraQuest · 2003-11-25 · Accessed 2026-08-06

Coverage
Detailed Leica M and R camera serial allocations through 1999.
Material
Detailed model allocations and special editions
Known limits
Older specialist compilation; the page warns that information may change.
Rights finding
All rights reserved; the page expressly prohibits copying or pasting into another site.
Decision
verification only
Use in this project
Never imported. Used only to flag facts that warrant independent confirmation.

community · import with attribution

Leitz lens serial numbers

Camera-Wiki.org community · Accessed 2026-08-06

Coverage
Coarse lens serial-to-year reference from 1931 onward.
Material
Coarse year ranges with qualified quantity figures
Known limits
Community compilation; year block does not identify a model or prove an individual manufacturing date.
Rights finding
Text is available under GNU Free Documentation License 1.3; photographs have separate licenses.
Decision
import with attribution
Use in this project
Only normalized numerical facts through 1995 are imported. No photographs or article prose are used. Attribution and license link are retained.

unverified · verification only

Leica Serial Number Search

My Leica · Accessed 2026-08-06

Coverage
Camera lookup 1923–2006 and lens lookup 1933–2005.
Material
Interactive lookup database
Known limits
Methodology, provenance, and reuse terms were not found on the reviewed public interface.
Rights finding
No reuse license identified.
Decision
verification only
Use in this project
No data imported or queried in bulk.

primary · citation only

Where can I find the serial number of my Leica product?

Leica Camera AG · Accessed 2026-08-06

Coverage
Serial-number locations for current and historical product families, plus Leica Support contact route.
Material
Official product guidance
Known limits
Does not publish historical allocation tables.
Rights finding
Copyright Leica Camera AG; no reuse license identified.
Decision
citation only
Use in this project
Cited and paraphrased; no photographs or branded assets reused.

specialist secondary · citation only

Leica Serial Numbers: The Holy Grail of Camera Identification

Leica Society International · 2020-08 · Accessed 2026-08-06

Coverage
Collector-oriented explanation of delivery records, identification limits, and conversions.
Material
Explanatory specialist article
Known limits
Not a complete serial allocation table.
Rights finding
No reuse license identified.
Decision
citation only
Use in this project
Used for independent context on conversion and delivery-record caveats; original wording is not reproduced.

primary · citation only

Leica 0-Series No. 112

Leica Camera AG · 2025-03 · Accessed 2026-08-06

Coverage
Documented history of Leica 0-Series camera number 112.
Material
Official press and archival statement
Known limits
Covers a single exceptional unit and is not a general allocation list.
Rights finding
Copyright Leica Camera AG; no reuse license identified.
Decision
citation only
Use in this project
Supports one exact documented-unit record through factual paraphrase.

specialist secondary · permission required

Leica: An Illustrated History (three volumes)

James L. Lager · Lager Limited Editions · Accessed 2026-08-06

Coverage
Cameras, lenses, accessories, variants, and archival examples.
Material
Specialist reference books
Known limits
Not directly inspected for this release.
Rights finding
Copyrighted books.
Decision
permission required
Use in this project
Queued for owner-acquired copy and page-level verification; no data imported.

specialist secondary · permission required

Leica Collectors Guide

Dennis Laney · Hove Collectors Books · 1992 · Accessed 2026-08-06

Coverage
Collector reference for camera and lens models and variants.
Material
Specialist reference book
Known limits
Not directly inspected for this release.
Rights finding
Copyrighted book.
Decision
permission required
Use in this project
Queued for independent verification only; no data imported.

specialist secondary · permission required

Großes Fabrikationsbuch Leica-Objektive

Hartmut Thiele · Accessed 2026-08-06

Coverage
Detailed Leica lens production allocations.
Material
Specialist reference book
Known limits
Commercial publication not directly inspected for this release.
Rights finding
Copyrighted book.
Decision
permission required
Use in this project
Promising future verification source; no data imported.

community · fact normalization only

M3

Leica Wiki / L-Camera Forum community · Accessed 2026-08-06

Coverage
Model-specific M3 serial allocations, finish and winding-stroke annotations, production totals, and community notes.
Material
Detailed model allocation table and explanatory notes
Known limits
Community-edited; several rows are explicitly reconciled from Puts and Gandy and some totals are computed.
Rights finding
No page-level reuse license was identified during review.
Decision
fact normalization only
Use in this project
Used to independently verify the 817001–820500 M3 allocation and its chrome/double-stroke annotation. No prose or table presentation is copied.

community · verification only

Leica Serial Number Library

iamGeoWat · GitHub repository · 2026 · Accessed 2026-08-06

Coverage
1,748 camera production records and 201 source labels spanning 1923–2006.
Material
Public source-code repository and downloadable database
Known limits
First-match overlap handling can hide ambiguity; production-year wording is stronger than the factory-allocation evidence supports.
Rights finding
The repository is public but contains no detected LICENSE file or explicit data license.
Decision
verification only
Use in this project
No code, raw records, labels, or database export is imported. Record and label counts are used only as a coverage benchmark against independently normalized Puts facts.

specialist secondary · verification only

Leica Camera Serial Numbers: A Database & List of 1707 cameras

Red Dot Camera · Accessed 2026-08-06

Coverage
Downloadable and searchable camera serial table with 1,707 rows.
Material
Commercial editorial table and export interface
Known limits
The site describes serial years as manufacture dates and does not expose field-level source reconciliation.
Rights finding
Copyright notice present; no data-reuse license identified. Download availability is not treated as permission to republish.
Decision
verification only
Use in this project
No table, CSV, export, prose, or presentation is imported. Used only to compare overall coverage and selected facts.

specialist secondary · fact normalization only

Leica Serial Number Lookup

base2photo · Accessed 2026-08-06

Coverage
Broad lens serial-to-year sequence through a qualified 2015+ boundary.
Material
Interactive lookup and numerical year table
Known limits
Later values are estimates and do not identify lens models; methodology and reuse license were not located.
Rights finding
No express data-reuse license identified.
Decision
fact normalization only
Use in this project
Only independently structured numerical boundary facts from 1996 onward are used, cross-checked against a second specialist table. No prose or presentation is copied.

specialist secondary · fact normalization only

LEICA Lens Serial Numbers and Dates

Ken Rockwell · KenRockwell.com · 2022 · Accessed 2026-08-06

Coverage
Broad lens serial-to-year estimates through 2015+.
Material
Specialist numerical year table and explanatory article
Known limits
The author states that post-2000 values are less accurate; ranges are reservations and may not have been fully produced.
Rights finding
Copyrighted editorial page; no express data-reuse license identified.
Decision
fact normalization only
Use in this project
Used only to cross-check independently structured post-1995 year boundaries. No prose, images, or table presentation is copied.