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Military History/Meaning of C-H on WWII posters


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QUESTION: This is a question that has attracted intense interest among a group of Wikipedia editors. We have been talking about it for a week and have gotten nowhere. While not "military history" in a strict sense, it is WWII-related.

There are a number of posters, apparently created by the War Production Board, which include the following text:


The question we have been unable to answer is what does C-H refer to? We have no shortage of good guesses, but nothing authoritative or verifiable.

Some of the posters seem directed at factory workers, others at the general public.

I will attempt to attach an image of one such poster. I can provide more if needed, but the text is always identical in the posters we have found. If you can provide our answer, please specify whether it would be ok to credit you by name in our discussion. If not, perhaps you could point me toward someone who might. Thank you.

ANSWER: I looked into WWII posters for my book Flag: An American Biography, but I was focused on those that used the image of the flag. This is the first I've heard of C-H. I did a bit of searching, but I'm stumped, too!

Has anyone contacted anyone at the Smithsonian Museum of American History? They have the most extensive collection of WWII government posters. Someone there might know.

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QUESTION: Thanks for the effort. I'll look into contacting the Smithsonian Museum, and I hope it won't require writing a letter (remember letters?).

In the meantime, would there be anything to gain by re-submitting the question to others in the Military History category at AllExperts? Say, one at a time, so no one is wasting effort? I don't know how AllExperts is set up, whether the others could see my question to you and chime in if they had something to add.

I would look carefully at the profiles of the others in the category and see if any mention their expertise in propaganda or posters--or, more broadly, WWII.

Also, you may want to try other categories, perhaps antiques appraisers who specialize in WWII materials.

If you do find the answer, I'd love to know, too. My email is marc527psc at

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Marc Leepson


I can answer most questions dealing with all aspects of U.S. military history. My expertise is the Vietnam War. I also have written extensively about the U.S. Civil War, World War II, World War I, The Philippine War, and the American Revolution. My books include a concise biography of the Marquis de Lafayette, the history of the American Flag, and the post-Jefferson history of Monticello, and therefore know a great deal about those specific subjects. I specialize in writing about matters of strategy--not tactics. And I also am interested in personalities. I have very little knowledge about ordnance or the value of old military memorabilia. Nor do I know a lot about uniforms and insignia--except about the Vietnam War. To repeat: I have no expertise in assessing the value of ordnance or uniforms or any type of military equipment. And my knowledge about military uniforms is only limited to those of the Vietnam War era. If you have questions on these topics, I recommend contacting an antiques dealer in your area who specializes in military uniforms, ordnance, etc.


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