Scores of vintage safety posters including some featuring Tufty the squirrel have been discovered within 110 filthy grey folders in a warehouse in Hockley.
The find in Park Road includes those bearing the immortal words 'Stop, Look and Listen' thought up by Birmingham child road safety campaign The Green Cross Code in the 1970s.
Coming from the Royal Society for the Prevention of Accidents (RoSPA), the campaigns are now being published in a book called Safety First which marks 100 years of making Britain safer.
Chief executive Tom Mullarkey said: "We always knew we had some poster artwork in storage but it was only when we cleared our old warehouse we discovered the sheer extent of our collection and the quality and age of the items.
"These posters would have carried simple yet important safety messages into homes and workplaces, helping people to prevent accidents to themselves, their loved ones and colleagues.
"Many of the messages are just as valid today as when they were created decades ago."
The posters date back to the 1930s and were created by some of the foremost graphic designers of their time, including Fougasse, who produced the famous Second World War 'Careless Talk Costs Lives' poster campaign.
For many, they bring back fond memories of work, rest and play in 20th century Britain.
Lord McKenzie of Luton, president of the RoSPA, who has written the book's foreword, said: "Even in this information-saturated age of social media and 24-hour news, there is much that these now 'vintage' posters can tell us about the power of accident prevention.
"That a little effort, a little forward planning and above all, a little knowledge, can make a big difference in our quest to get the balance right between carelessness on the one hand and risk-aversion on the other.
"It is fitting that, as our charity prepares for its centenary, the rediscovery of these posters should stand at the intersection of a proud past and a promising future - promising, because RoSPA stands ready to serve the nation again, by providing our families, colleagues and friends with all of the skills and confidence they need to lead more fulfilling lives - free of the fear of accidental injury."
** Safety First by design expert Dr Paul Rennie (£16.99, Saraband) is being published on June 18 as part of RoSPA's forthcoming centenary, which will be marked extensively during 2016/17.