How it Works The Telescope and Microscope

How it Works The Telescope and Microscope, 1971 was the 12th title in the How-it-Works series, 654.  It was illustrated with typical clarity and precision by B H Robinson and was written by Roy Worvill.  This book was revised and re-issued in the 1980s with a black cover, but this is the original version.

This copy:

Matt boards.  This book is in excellent condition inside and out with only very light wear and very clean, tight pages.  It dates to the 1970s and has the original price of 30p on the back.