Section 02
The tang — the flat, unsharpened base of the blade near the pivot — carries Case's manufacturer stamp. The wording and dot pattern of that stamp changed over time, which is the main way collectors narrow down when a knife was made.
The earliest stamps predate the "XX" mark entirely and are identified by wording alone — variations like "Case Bros" or early "W.R. Case" stampings. No dot system yet; dating relies on wording, blade steel, and handle construction.
The double-X mark appears, originally referencing a tempering process. Through this long stretch, stamps read variations of "Case XX" and later "Case XX USA" — still no dots. Dating within this span leans on the exact wording and stamp shape rather than a year-by-year code.
Case introduces dots above the "XX" to mark the manufacture year — one dot for 1970, counting upward toward ten dots for 1979. This is the start of the dot-dating system collectors rely on today.
The same counting system continues, but the dots relocate beneath the "XX" — one dot for 1980, building back up to ten for 1989 — so their position, not just their count, matters when dating a knife from this window.
Dots move back above the stamp for a third decade-long cycle. As with the two previous decades, dots are removed one at a time as the decade progresses, so a knife with fewer dots was made later in the decade.
Case moves away from dots and begins stamping the last two digits of the actual year directly on the tang, alongside "CASE" — a much more direct system that continues today.
A note on precision: this timeline is a starting framework, not a substitute for a full dot-by-dot chart. The exact dot count for a single year, and known exceptions or transition-year overlaps, will be filled in here as the archive grows — cross-check a specific knife against a detailed chart before relying on this for a valuation or sale.