Davos International Summer Camp - Anyone out there go to this camp??

Looking for people who may have been lucky enough to go to the International Summer Camp in Davos, Switzerland in the late 1960's.  (See my other post about the Davos camp - 40 years later.)  Here are a couple of camp patches I found recently from my summer at camp in 1968 --

Do these look familiar?  Anyone have a copy of the old camp brochure from 1968?  Please share!