Yes, I'm sure of it...I fished the titles up from an old book called Art & nimation Images #2, dated 1972 or so, from the college library. These things won scads of awards in thier day, which is a sure sign they'll never see the light of day in the States.
Adam 2 (1970, Jan Lenica)
Cavaleras (1968, Mexico)
When Peace Plays With Men
La Diamant (The Diamond)
About Cavalereas... it's about the Mexican Day Of The Dead. All my attempts to find info about it have been in vain.