Photographed collector reference · Case & bottom stamp
1986 · Regular · Bradford — Case & bottom stamp reference (1986)
1986 · Backslashes: Backslash date-code system used January–June 1986. 1986 · Roman: Roman year code II began in July 1986. Valid 1986 month letters are G-L. 1986 · July: Roman year code II began in July 1986. Valid 1986 month letters are G-L. 1986 · Regular · Bradford: Backslash-coded 1986 example from the period before the Roman-numeral dating system was introduced.
- Known period
- 1986
- 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; visual features documented, precise production date and authenticity not automatically verified.
Reference images · real photographed examples
Backslash-coded 1986 example from the period before the Roman-numeral dating system was introduced.
Historical variants and original source records
Independent sources and distinct stamp layouts are preserved as individual photographs, not additional main cards. A pictured example alone cannot establish that every lighter from the year used the same construction.
- 1986 · Regular · Bradford — 1986 · Roman
- 1986 · Regular · Bradford — 1986 · July
- 1986 · Regular · Bradford — 1986 · Regular · Bradford
- 1986 · Regular · Bradford — 1986 · Regular · Bradford
- 1986 · Regular · Bradford — 1986 · Regular · Bradford
Dating evidence and reference verification
Sources: In Quiet Detail — Primary photographic and collector reference archive; Glen's Zippo Page — Historical bottom-stamp, case/insert construction details, Canadian dating chronology, and transition research; Moonlight Zippo — Historical bottom-stamp variants, Slim dating chronology, and Canadian bottom/insert period references; J. Kim
Supporting comparison: A useful illustrated or photographed comparison. The feature alone does not establish a unique production date.
Reference verification: Photographed specimen; visual features documented, precise production date and authenticity not automatically verified.
Photographic copyright: Credited individually below each photograph
Dating caution. Case and insert can have different manufacture dates; inserts may have been replaced. A single feature does not establish authenticity.