Original WWII German feldfernsprecher 33 grounding stake with a bit of wire wrapped around it. These stakes allow you to run only one line between phones and use the earth as the second line. This novel concept allows you to maximize the use of your available cable, but does allow the enemy to listen in via the ground. This one is in fairly good condition with decent markings. The contact knob also works freely. It appears to be only lightly used as the tip is still nice and the top doesn't look like anyone has really pounded on it much. The cloth covered wire is in pretty rough shape but it is interesting to see how they just kept a length of wire wrapped around the stake for quick set up.
Years ago, we spoke with a Wehrmacht veteran at an event that recalled using the stakes and he told us that amongst the signals group, it was common practice to urinate on the grounding stake to better ground it. The stakes are hollow with a small funnel on top designed to conduct water through the stake and into the ground for just that purpose, though I am sure the designer originally intended water, rather than urine, to be used.