Vintage Japanese Judy Bolton Books Part 1

Judy Bolton was published in Japanese in hardcover with either slipcases or dust jackets during the 1960s, 1970s, and 1980s.  The bare books have generic covers, seen in the photo below.

The following books are various editions of The Haunted Attic.

Front of 1966 and 1972 slipcases

Back of 1966 and 1972 slipcases

1983 dust jacket

Here are various editions of The Invisible Chimes.

Front of 1966 and 1972 slipcases

Back of 1966 and 1972 slipcases

1976 dust jacket

Here are various editions of Seven Strange Clues.

Front of 1965 and 1969 slipcases

Back of 1965 and 1969 slipcases

1983 dust jacket

Here are two editions of The Voice in the Suitcase.

Front of 1966 slipcase

Back of 1966 slipcase

1982 dust jacket