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United States of America 1938 – 2011

Tape 4 [Program 4] 1971-72 Description: Vibration #1, Vibration #2, 2 Stage transfer drawing (advancing to a future state), 2 Stage transfer drawing (retreating to a past state)
Title Notes: Master tape. Not to be used for exhibition, study or loan purposes.
Materials & Technique: audiovisual, multimedia, Digital Betacam

Dimensions: Duration 44.50 h minutes
Acknowledgement: Purchased 1997
Accession No: NGA 97.114