Wehrmacht Amputation Image

Earlier last month I encountered this image on Google Images while searching for something else Wehrmacht-related which I can no longer recall. Anywho, I found this image strangely compelling and powerful. This image was shot in Russia in 1942 and shows a German soldier being treated by comrades after taking a high energy hit from a piece of metal (bullet or shrapnel) which amputated his left arm which rests in the foreground. It is highly probable none of the these men pictured survived the conflict. What a waste of fine infantry and humanity. If anybody can tell me more about this as a result of their own prior knowledge I am quite welcome to more information. Photographer unknown.