This photo is from Ken Wood, and he says it was taken on Sgurr Dhonuill in December 1963.

From the left: Dave Birkett, Bobby Rigg, Billy Duff [Jim Duff's older brother], Ken Wood.

Again from Ken Wood, this is Stob Coire nan Lochan in December 1963.

From the left: Ken Wood, David Birkett, Billy Duff, Bobby Rigg.

Another one from Ken Wood of David and Charlie Birkett , possibly in Gillercombe.

David is using the waist belay common at the time.