RSA/PR/DE/100/11/3
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SubSub Series
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1982/1983
Parte de Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
RSA/PR/DE/100/11/9
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SubSub Series
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1988/1989
Parte de Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
RSA/PR/DE/100/11/17
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SubSub Series
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1996/1997
Parte de Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)