Horse & Pony Books:
OLD BONES THE WONDER HORSE
FIRST EDITION McGRAW HILL [USA] 1955
ILLUSTRATED BY WESLEY DENNIS
There was also a Weekly Readers Children's Book Club edition.
Reprinted in paperback by Scholastic.
EDITIONS PICTURED: Book Club edition, two different Scholastic paperbacks
SUMMARY: Fictionalised account of the true story of Exterminator, one of America's best known racehorses, who began life as a scrawny foal nicknamed 'Old Bones.'
Easy to find in the USA, especially the paperback edition. Can be hard to find elsewhere but should be fairly cheap to buy from the USA even with shipping costs.