The Swiss Army Knife is one of the most iconic multi-tools ever produced — but its history is far more structured and technical than most realize.
This page explores the evolution of Victorinox 91 mm models through their tool configurations, structural layers, and historical transitions. Rather than presenting a simple timeline, it documents how and why specific tools appeared, disappeared, or changed shape over time.
From early Officer’s Knives to complex multi-layer flagships, the development of Swiss Army Knife models reflects shifts in civilian use, manufacturing capability, and design philosophy.
A brief history of Victorinox
Founded in 1884 in Ibach, Switzerland, Victorinox began as a small cutlery workshop created by Karl Elsener. A decisive milestone was reached in 1891, when the company started supplying knives to the Swiss Army, followed in 1897 by the patent of the Officer’s and Sports Knife, the direct ancestor of the modern Swiss Army Knife.
In 1921, the name Victorinox was officially adopted, combining Victoria (the founder’s mother) and inox (stainless steel), symbolising both family heritage and material innovation. A major industrial breakthrough occurred in 1931, when Victorinox partnered with Brown, Boveri & Cie. to install the world’s first fully electric hardening plant at its Ibach factory, ensuring consistent heat treatment and industrial-scale quality control.
Over the decades, Victorinox progressively refined a modular construction logic, giving rise to a wide and historically layered range of 91 mm models, which this article aims to structure and contextualise.
For more details, refer to the official Victorinox history:
🔗 https://www.victorinox.com/en-CH/All-about-Victorinox/History/cms/history/
Purpose of this catalogue pillar
This page serves as the central historical reference for Victorinox Catalogues 91 mm knives on SAKnife.
All period / transition articles, individual model fiches will link back to this page. (Link 📜 / 📝 to article when available)
Rather than reproducing catalogues year by year, the goal is to highlight architectural continuity, model transitions, and layer logic.
This page is designed as a historical counterpart to the structural identification tree:
👉 🔎 Victorinox 91mm Identification Tree – Identify Your Swiss Army Knife by Toolset
How to read the table
- ☀️ Model appearance during the period
- 🗑 Model disappearance during the period
-
(no icon) Model continues
-
📝 Link to Model Sheet when available
Tools legend (icons used in the table)
For a dedicated analysis of how the 91 mm toolset evolved — and how to read it across models and periods:
👉 🛠️ Victorinox Tools & Structure — 91 mm Swiss Army Knife Evolution
Victorinox 91 mm Models — Structural evolution by period
How this table can be used
This table is a structural reading tool designed to:
- identify knives by layer architecture,
- understand when and why models appeared or disappeared,
- contextualise renamings and transitions,
- navigate efficiently between historical periods, transitions, and model fiches. (Link 📜 / 📝 to dedicated article when available)
Conclusion — Reading Victorinox through structure
The evolution of Victorinox 91 mm knives is not linear but architectural.
Tools migrate, layers expand or disappear, and model names evolve, while the underlying mechanical logic remains remarkably consistent.
Understanding this structure is essential for accurate identification and historical interpretation. This page is intended as the cornerstone of SAKnife’s Victorinox historical content.
This article is based on the cross-analysis of official Victorinox documentation, historical catalogues, and collector-grade reference material. Model continuity and layer counts are interpreted using a strict structural methodology consistent with Victorinox construction logic.
Identify every Victorinox 91 mm configuration using the structural identification tree:
👉 🔎 Victorinox 91mm Identification Tree – Identify Your Swiss Army Knife by Toolset
Date your Swiss Army Knife using the interactive visual tool based on tang stamps and tool evolution:
👉 ⌛ Swiss Army Knife Dating Guide – Victorinox Interactive Dating & Tools Evolution
