1969–1977 · Slim · Bradford — Case & bottom stamp reference (1969–1977)

Reference images · real photographed examples

Dating evidence and reference verification

Sources: J. Kim

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 source-attributed period, not an exact-year date code

Photographic copyright: Not specified in supplied source

Dating caution. This is a documented period reference, not proof of a precise manufacturing year. Case and insert can have different manufacture dates; inserts may have been replaced. A single feature does not establish authenticity.

Year lookup

• Zippo 1969: year reference
• Zippo 1970: year reference
• Zippo 1971: year reference
• Zippo 1972: year reference
• Zippo 1973: year reference
• Zippo 1974: year reference
• Zippo 1975: year reference
• Zippo 1976: year reference
• Zippo 1977: year reference