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In Quiet DetailA visual study of simple, well-made objects.

Historical year lookup

Zippo 1956

Historical Zippo references associated with 1956: 10 consolidated case/bottom stamp entries, 2 consolidated insert entries, and 14 individual photographic source records. Date codes, materials and insert construction should be assessed together, especially for transitional years.

10 consolidated case references2 consolidated insert references14 documented photo records

Historical context and cautions

Historical dating note

A real 1956 Bradford example supplied by Terry Lyons documents a brass case with steel insert and provides a photographed dot-layout comparison.

Slim manufacturing note

Zippo begins production of Slim lighters. Early Slims have a flat bottom; the insert uses a wheel guard (“cobra head”) over the flint wheel.

Canadian production note

Canadian hinge transition: unequal five-barrel spacing is generally treated as 1956 and later.

Bottom stamps and cases

Insert references and construction

Construction features documented for 1956

Typical US regular-production chronology from independent collector research by Hardi Döhler. The ranges overlap, and Canada, Slim, Replica, Sterling, Japan-market and special editions may differ. These are supporting observations, not a definitive date determination.

Case shapes

  • Postwar recessed-bottom profile 1947–2026 · broad · Source: Hardi Döhler

    The familiar recessed-bottom case profile develops in the postwar years; this alone cannot distinguish later decades.

    Present-day cases, replicas and special lines can depart from the usual form.

Case metals and finishes

  • Brass as common regular-case substrate 1954–2026 · broad · Source: Hardi Döhler

    Chrome-plated brass becomes typical again in the mid-1950s; special materials and later editions are exceptions.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Hinge development

  • Nearly equal five-barrel hinge 1949–1956 · transitional · Source: Hardi Döhler

    Five-barrel hinges with relatively even barrel widths appear from late 1949 onward.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

  • Five-barrel hinge with unequal widths 1956–2005 · broad · Source: Hardi Döhler

    Later five-barrel hinges generally have an uneven barrel-width pattern. This broad clue cannot determine a precise year.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Patent and bottom-stamp wording

  • PAT. 2517191 with patent-pending wording 1953–1956 · transitional · Source: Hardi Döhler

    Collectors document combinations of the second patent number and patent-pending text during the mid-1950s.

    Patent number issued in 1950; the appearance of particular stamp layouts may be later.

Insert materials

  • Chrome-plated sheet-steel insert 1953–2026 · broad · Source: Hardi Döhler

    Chrome-plated steel construction with a seam is typical of later regular inserts, but special and premium variants differ.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Insert lettering

  • Patent text on one insert face 1943–1959 · approximate · Source: Hardi Döhler

    One-sided patent/instruction layout is common in several mid-century insert families; the exact layout evolved.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Chimney construction

  • Open-sided 16-hole chimney 1947–2026 · broad · Source: Hardi Döhler

    Sixteen holes and an open wheel-side chimney wall become typical from the late 1940s onward.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Cam springs

  • Humped leaf cam spring 1937–1957 · transitional · Source: Hardi Döhler

    The arched/humped leaf cam spring is documented across several prewar and postwar decades.

    The photographed 1947 Terry Lyons example has a modern replacement spring; never infer 1947 spring design from that component.

Flint-wheel cuts

  • Cross-cut flint-wheel teeth 1946–2026 · broad · Source: Hardi Döhler

    Cross-cut flint-wheel pattern becomes typical after the war, with possible overlap and replacements.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Flint-wheel rivets

  • Hollow flint-wheel rivet 1933–1963 · transitional · Source: Hardi Döhler

    Hollow flint-wheel rivets appear through the early 1960s; later examples may carry replaced components.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Felt pads

  • Unprinted light-coloured felt pad 1947–1992 · broad · Source: Hardi Döhler

    A plain pale rectangular felt pad is documented across many decades; replacement pads limit its dating precision.

    Typical Bradford-made regular lighter; exceptions and overlapping production runs exist.

Wicks and packing

  • Pre-copper-wire wick construction 1933–1980 · broad · Source: Hardi Döhler

    Older wick styles can differ from the later copper-wire-interwoven wick; repairs commonly replace wicks.

    Some historic wick materials may contain asbestos; avoid disturbing uncertain old material.

Explore the full construction chronology

Known period variants

Case construction evidence

Insert construction evidence

Similar years

1955 · 1957

Interpretation: References may cover multiple years. A documented insert date is not proof of its case production date, and special Replica stamps require separate interpretation.

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