trad gear in the 60s and 70s

Question
I am researching a paper on trad gear used in the 60's and 70's.  Stoppers and pitons were in common use, but do you know of any other types of gear people were making and using (even if these did not work especially well)during this time period?

Thank you,
Tina

Answer
Tina---unfortunately I do know---'cause I was climbing on the stuff back then.  If you live in Denver, go to Neptune Mountaineering in Boulder--the old stuff covers the walls.

As I understand, nuts first appeared in England in the 1960s...and slowly emerged in the US in the early 1970s. By about 1975, climbers had a variety of choices in stoppers..and three major choices in larger nuts---Chouinard hexes, Forrest Tetons, and tube chalks.  Forest Mountaineering also sold a variety of  wired nuts---like copperheads and arrowheads--both soft metal nuts best used in aid climbing. Lowe had an early version of a cam---it had a cam on one side. Later, Lowe came out with tri-cams---maybe in the late 1970s.

The first cam--a Friend--appeared in shops in around 1977.

Hope this helps.

George