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![Royal Society for the Prevention of Accidents, creator. [Bookmark from the Royal Society for the Prevention of Accidents].](https://media.collections.yale.edu/thumbnail/ycba/d2e26cf0-ac35-452c-a3a8-cb507f5077a4)
1
- [Bookmark from the Royal Society for the Prevention of Accidents]
- [approximately 1970?]
![Royal Society for the Prevention of Accidents, author. [Bookmark from the Royal Society for the Prevention of Accidents].](/assets/not_available1-cc1bd2f8edc5bcb82cb88424295cf375a9258383b6c72f37ec36bb6c3fbb9020.png)
2
- [Bookmark from the Royal Society for the Prevention of Accidents]
- [approximately 1968]
3
- [Bookmark from the Royal Society for the Prevention of Accidents]
- [approximately 1961]