Research method
How We Recover Discontinued Instructions
A transparent workflow using names, photographs, catalogue clues, archived pages and independent verification.
Open sectionLost puzzles and recovered instructions
Archive Detectives
Follow the evidence used to identify discontinued puzzles, trace lost instruction pages and verify recovered solutions.
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Explore archive detectives
Open investigation
The Motor Cross Investigation
What the surviving photograph and product record reveal, what has been searched and what evidence is still needed.
Open section
Open investigation
The Rifle Puzzle Investigation
A case file for the wooden rifle construction puzzle, including identification clues and submission guidance.
Open sectionEvidence and trust
How Recovered Solutions Are Verified
A four-level evidence system separates original instructions, manufacturer sources, strong matches and provisional identifications.
Open sectionCan you solve an open case?
The Motor Cross and Rifle pages still need complete, verified instructions. Photographs of original sheets or a clear assembly sequence would be especially valuable.