Underwater light, Toshiba K-132. This was a standard underwater light for diving in the Showa era. It was highly reliable back then, with a pressure resistance of 50m. The old Toshiba mark is engraved on it, making it nostalgic, and it's full of a sense of sturdy construction. Weights are attached inside to ensure neutral buoyancy, but they can be removed for use on land. The exterior has scratches, scuffs, and dirt, but the interior shows no signs of rust. The black rubber strap is torn.