Sitemap - 2022 - Mechanical Advantage: Tools for the Wild Vertical
The envisioning of pitons, USA 1920s (Miriam O’Brien)
USA adoption of pitons 1920s-1939 Colorado (part A) Ellingwood and Lavender
Mechanical Advantage Volume 1 print format available
Big wall history book notes (1994)
A5 Adventures 1987 and 1988 Pricelists
British Empire Pitons 1920s+, notes on Japan
INDEX to Mechanical Advantage series
Post-WW2 American Steel Pitons addendum
A5 hammer production forge process
State of the Art Climbing Gear, 1964
Fallen heroes (and the climbing/politics/war/bias interface)
First carabiners for climbing-summary.
Trains and Kain (Canada climbing to 1916, part 1)
Climbing Tools and Techniques—early North American Developments to 1910
1930s Climbing Tools (Europe, PartC)
Climbing Tools and Techniques—1908 to 1939-Aid Climbing Mastery (Europe, PartB 1st draft)
Climbing Tools and Techniques—1908 to 1939 (Europe, PartA) Myths and Legends