Three volumes comprising:
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Calendar and Birth Stone.
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Language of Flowers.
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The Zodiacal Signs and Their Symbols.
Each 2x2 mm, accompanied by matching volumes in a 20x20 mm format. Each volume set into its own display case along with a tie-clip magnifying glass, cases are book shape full various color leather with the spines gilt. Each in a clear plastic case and plain card slipcase.
From 1979 until 1985 these held the record for smallest printed books in the world. Bromer & Edison, p.117. Accompanied by a small leather display box, specially designed by Osami Nakao, to hold the trio of microminiatures.