Old School Pro - Help Identifying & Dating

Garry R wrote:

Up thread you had the Rock n Rollers listed as 1B and Rok Joxs as 2B

Whoops, sorry   I have just corrected it. Thank you Garry.

The CMI RoKJoX (1987) is a spring loaded version of the Kirk's Kamms (1976)

Crankster1 Waters wrote: RocknRollers were bomber, the larger white one saved my butt when I inverted out of LayBack crack at the New's  Bridge area many moons ago, good for blind placements as well, good alternative to the mini cam sizes in their day.

I wonder why they weren't/aren't popular if they hold. Like the small Tricams, they're light and fit where nothing else will.

Garry R wrote:

I wonder why they weren't/aren't popular if they hold. Like the small Tricams, they're light and fit where nothing else will.

They are really just slider nuts, of which there were/are many iterations, and which still have their applications and place on the modern rack. They were also a bear to clean once weighed. 

3C predates my climbing. As for Forrest, my first swami as a kid was made by him. The leg loops were some other brand. Whoever wore a Whillans harness never got to be a Don Juan or adult film star. Thank God I never wore one. The Forrest big wall hammer is the most coveted piece of kit of all time?
The hard free climbing I’ve seen that requires any type of slider nut that is shown in the previous posts had them preplaced for redpoints & cleaned with a nut tool & hammer. Todd Skinner used to use them. These placements for redpoints are pretty much bolted now (rightfully so). 

I clipped a couple of these dolt hangers today. Could anyone estimate the era this hardware came from? 

Paul Webberwrote:

I clipped a couple of these dolt hangers today. Could anyone estimate the era this hardware came from? 

Late 60s, very early 1970s.