Photographed collector reference · Case & bottom stamp

1951–1967 · Regular · Niagara Falls — Case & bottom stamp reference (1951–1967)

1951–67 · Canada · Patented 1950 variant B: Glen documents a second Patented 1950 Canadian base-stamp form with a different 9 and different alignment of the final 0. The page notes that this second form may not have appeared until about 1952, but the exact introduction and overlap with variant A are still under research. 1951–1967 · Regular · Niagara Falls: This Canadian stamp style spans a broad source-attributed period. Hinge construction, insert markings and period-specific advertising may help narrow the date, but none is conclusive by itself. 1951–1967 · Regular · Niagara Falls: The source describes a more compact lettering layout than its Variant 1, leaving wider spaces on either side. This is a documented visual comparison, not an exact-year code.

Known period: 1951–1967
Plant: Niagara Falls / Canada
Case type: regular
Dating evidence: Collector-reported reference — A collector or source has documented this example or attribution. The exact year, manufacturing history or classification may not have been independently verified.
Reference verification: Photographed specimen; date or classification attributed to the source, not factory-certified.

Real photoCanada variant

Reference images · real photographed examples

1951–1967 · Regular · Niagara Falls — Bottom stamp · 1951–1967 · Style 1 — **Bottom stamp · 1951–1967 · Style 1**Real photographed example · Source: J. Kim · Photo © J. Kim
This Canadian stamp style spans a broad source-attributed period. Hinge construction, insert markings and period-specific advertising may help narrow the date, but none is conclusive by itself.

1951–1967 · Regular · Niagara Falls — Bottom stamp · 1951–1967 · Style 2 — **Bottom stamp · 1951–1967 · Style 2**Real photographed example · Source: J. Kim · Photo © /u/frun_riv
The source describes a more compact lettering layout than its Variant 1, leaving wider spaces on either side. This is a documented visual comparison, not an exact-year code.

1951–1967 · Regular · Niagara Falls — Historical illustration — 1951–67 · Canada · Patented 1950 variant B — **Historical illustration — 1951–67 · Canada · Patented 1950 variant B**Real photographed example · Source: Glen's Zippo Page

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.

1951–1967 · Regular · Niagara Falls — 1951–1967 · Regular · Niagara Falls
1951–1967 · Regular · Niagara Falls — 1951–1967 · Regular · Niagara Falls

Dating evidence and reference verification

Sources: Glen's Zippo Page — Historical bottom-stamp, case/insert construction details, Canadian dating chronology, and transition research; J. Kim

Collector-reported reference: A collector or source has documented this example or attribution. The exact year, manufacturing history or classification may not have been independently verified.

Reference verification: Photographed specimen; date or classification attributed to the source, not factory-certified.

Photographic copyright: Credited individually below each photograph

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

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