4 Part Variation, July 1969
4 Part Variation, July 1969, (detail)
4 Part Variation, July 1969, (detail)
4 Part Variation, July 1969, (detail)
4 Part Variation, July 1969
4 Part Variation, July 1969, (detail)
4 Part Variation, July 1969, (detail)
4 Part Variation, July 1969, (detail)