- TitleOptical toys / Basil Harley.
- AuthorBasil Harley, 1915Basil Harley, 1915-,
- Description32 p. :, 22 cm.
- Call NumberTS2301 .T7 H28 1988
- SubjectsKaleidoscopes., Camera obscuras., Toys -- History.
- PublishingPrinces Risborough :: Shire, 1988.
- MaterialBook
