This is a collection of four Ladybird Books from the 'How It Works' series (654)

All are first editions, based on the tally number, price and the fact that they are the last title listed.

All 4 books have been laminated and each has a small black mark (covering a name) to the inside front page (as pictured).

All books are clean internally and are in good-very good condition (allowing for those factors mentioned above).

Television - 1968, 2/6, Tally 200

Hovercraft - 1969, 2/6, Tally 230

Ocean Liner - 1971, 2/6 & 12.5p, 270

Telescope & Microscope - 1971, 15p, 280