File talk:High-temperature electrolysisfr.png

Can someone investigate this image? There's a copy here that is dated earlier that credits this work as Public Domain from the U.S. Department of Energy - https://commons.wikimedia.org/wiki/File:High-temperature_electrolysis.png

It can't be both credited to Grimlock under a CC BY SA 3.0 and be public domain credit to the USDOE.

Cheers.

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