A low-angle selfie captures a male individual holding a survey pole with a GNSS receiver attached, under a cloudy sky in Karnobat, Bulgaria

A low-angle selfie captures a male individual holding a survey pole with a GNSS receiver attached, under a cloudy sky in Karnobat, Bulgaria. The man, with short dark hair, a beard, and a mustache, looks directly at the camera with a neutral expression. He wears a black hooded jacket, a dark grey Adidas beanie, and a neon yellow high-visibility vest. His right hand holds a black survey pole, which extends upwards out of frame. Mounted atop the pole, angled slightly towards the camera, is a white and yellow Trimble GNSS receiver, showing its underside with visible battery compartments and connection ports. The background consists entirely of a densely clouded sky with varying shades of grey and some brighter, lighter cloud formations.