Photographed collector reference · Insert
1970 · Regular · Bradford — Insert reference (1970)
Zippo · 1970: Insert front, reverse and chimney-top photographs accompanying Terry Lyons’s 1970 Bradford regular-size Zippo. Lettering and construction are real photographic evidence; insert replacement and overlapping production periods prevent a guaranteed factory pairing or exact insert manufacture date. The reverse face is photographed without the later two-sided text layout; this single specimen is not a universal dating rule.
- Known period
- 1970
- Plant
- Bradford / United States
- Case type
- regular
- Dating evidence
- Supporting comparison — A useful illustrated or photographed comparison. The feature alone does not establish a unique production date.
- Reference verification
- Photographed specimen; date or classification attributed to the source, not factory-certified.
- Source attribution note
- Photographed collector specimen attributed to this production year; inspect the complete code, not an isolated mark
- Year attribution
- date-code-supported collector attribution
Reference images · real photographed examples
Dating evidence and reference verification
Sources: Terry Lyons
Supporting comparison: A useful illustrated or photographed comparison. The feature alone does not establish a unique production date.
Reference verification: Photographed specimen; date or classification attributed to the source, not factory-certified.
Source attribution: Photographed collector specimen attributed to this production year; inspect the complete code, not an isolated mark
Photographic copyright: Terry Lyons
Dating caution. Case and insert can have different manufacture dates; inserts may have been replaced. A single feature does not establish authenticity.