Climbing Tools and Techniques—1908 to 1939 (Europe, PartA) Myths

Mechanical Advantage Series by John Middendorf

In Time with Fashion: Tissot in Shanghai (1920–1948)

Climbing Tools and Techniques—1908 to 1939-Aid Climbing Mastery (Europe, PartB 1st draft)

1930s Climbing Tools (Europe, PartC) - by John Middendorf

Climbing Tools and Techniques—1908 to 1939 (Europe, PartA) Myths

Climbing Tools and Techniques—1908 to 1939-Aid Climbing Mastery (Europe, PartB 1st draft)

1930s Climbing Tools (Europe, PartC) - by John Middendorf

Guderian myth of the blitzkrieg panzer tactics1 by Gustavo Urueña

The Evolution of Climbing Gear: From Ropes to Harnesses

Great series on climbing history by John Middendorf — Alpine Savvy

Explore! – Cabot's Pueblo Museum

Climbing Tools and Techniques—1908 to 1939 (Europe, PartA) Myths

Climbing Tools and Techniques—1908 to 1939 (Europe, PartA) Myths

Climbing Gear of the Past

INDEX to Mechanical Advantage series - by John Middendorf