Date: 1972

Medium: Paper (onion skin, parchment, and copy)

Object number: BC.BCR.1972

Date: 1972

Object number: BC.BCM.1972

Date: 1973

Medium: Paper (onion skin and parchment)

Object number: BC.BCR.1973

Date: 1973

Object number: BC.BCM.1973

Date: 1974

Medium: Paper (onion skin and parchment)

Object number: BC.BCR.1974

Date: 1974

Object number: BC.BCM.1974

Date: 1975

Medium: Paper (copy and parchment)

Object number: BC.BCR.1975

Date: 1975

Object number: BC.BCM.1975

Date: 1976

Medium: Paper (copy and parchment)

Object number: BC.BCR.1976

Date: 1976

Object number: BC.BCM.1976

Date: 1977

Medium: Paper (copy paper and parchment)

Object number: BC.BCR.1977

Date: 1978

Medium: Paper (copy and parchment)

Object number: BC.BCR.1978