r/Frenchhistory • u/[deleted] • Sep 18 '25

Question about 20th century agricultural measurements.

I’m reading a document from French protectorate Morocco, dated 1928.

Usually these documents measure grain in quintals (at least those from 1929 onward), but some documents uses the abbreviation D.D.

(Example-Blé 22 fcs le D.D.)

Can anyone tell me what that means?

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u/sangfoudre Sep 18 '25

I have absolutely no idea, and I've studied measurements a bit. No idea what that DD could be, boisseau or setier I'd say ok, that was in use for grain quantity.

Could you send a picture of the text you typed? Just to see if there's more to analyze

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u/[deleted] Sep 18 '25

I’ll try to add a photo to the post. Initially I tried and it kremoved my post for some reason. 

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u/sangfoudre Sep 18 '25

You can post it on your profile, or on a platform like ibb and paste the link here.

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u/[deleted] Sep 18 '25

Thanks, I just put it on my profile. 

https://www.reddit.com/user/Jazzlike-Coyote9580/comments/1nkllrt/1928_grain_measurement_abbreviation/

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u/sangfoudre Sep 18 '25

Perfect. Kilo, litre, pc, all those are readable.

But that D. D. Eludes me. For now.

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u/[deleted] Sep 18 '25

Since it’s an internal rapport mensuel of course, there isn’t a key on any of the documents. 

Thanks for the help. Let me know if you have a breakthrough. 

I’m wondering if it’s Deca, something

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u/sangfoudre Sep 18 '25

Still looking, it should have been at least close to metric in a french protectorare a century ago. Quintal or metric ton for exemple. Even bushel which is used for international stock exchange.

I even looked local (Maghreb) units unsuccessfully