This is an image from a 1940s Soviet Radio Ham magazine called “Radiofront”. The article describes how to use a homemade attachment to a gramophone to make a recording to a plastic matrix - e.g. a used X-ray plate.
Soviet amateur radio magazines of the time often described DIY devices for making such recordings. Usually the articles claimed that such devices would allow radio amateurs to record broadcasts of speeches by the Soviet leaders (Stalin, Molotov, et al) to preserve them for posterity. But instead, the technique was actually used to copy recordings by Pyotr Leshchenko and other banned artists. With the advent of more professional devices copied or adapted from those brought home as war trophies by Russian soldiers after WWII, such articles disappeared.
With thanks to Yuriy Gladkiy