"Imagine A Purple Triangle" (version #1) by De Villo Sloan
"Imagine A Purple Triangle" (version #2) by De Villo Sloan
"Imagine A Purple Triangle" (variant #1) by De Villo Sloan
"Imagine A Purple Triangle" (variant #2) by De Villo Sloan
"Imagine A Purple Triangle" (foundation) by De Villo Sloan
