🇬🇧 German M40 helmet covered with a white winter camo. It is a first interesting find with our homemade underwater search device (you can learn more about its design and testing in our latest stories highlights). The helmet has been pulled from tge depth of about a meter (3,28ft), considering the water and soil. Unfortunately, the iPhone somehow didn’t record sound while shooting this video. We have already upgraded our underwater mask and made the whole system more robust and ergonomic. Most