ISBN: 0721402313.
Reprint, published by Wills & Hepworth in 1969.
Pictorial paper-covered boards.
50 pages.
Series 654, 'How it works'.
Original price 15p.
Covers worn at edges, and marked.
Contents VG.
Good condition.
(Ladybird)
Catalogue Number: #101779
Price: £3.00
Sorry - This book has already been sold.