A diving helmet is a remarkable piece of underwater equipment that has played a pivotal role in the history of underwater exploration and commercial diving. Typically made of metal, such as brass or copper, these helmets are designed to protect a diver's head and allow them to breathe while submerged in deep waters. Attached to the helmet is a hose that connects to a surface air supply, providing a continuous flow of breathable air to the diver. Diving helmets have been essential for underwater tasks like salvage operations, pearl diving, and underwater construction, offering both protection from water pressure and a stable air source. While modern diving technology has evolved significantly, with the use of scuba gear becoming prevalent, these iconic diving helmets remain a symbol of early underwater exploration and continue to be cherished as collectors' items and historical artifacts.