You're buying all the pictured items.

A mixture of lamps. I'm not fully sure about what they all are, but AI have helped with the following:

A collection of antique carbide bicycle lamps (also known as acetylene gas lamps).

These lamps represent a fascinating period in transportation history. They were the pinnacle of high-tech cycling illumination from the late 1890s through the 1920s before being replaced by modern electric battery and dynamo systems.

Carbide lamps did not use oil or batteries; they generated their own fuel. The mechanics are quite clever.

Two Chambers: The lamp has an upper water tank and a lower chamber filled with rock-like chunks of calcium carbide.

The Valve: The rider turned a small knob on top, opening a needle valve to let water drip into the bottom chamber at about 8 to 12 drops per minute.

When they were introduced around 1896, carbide lamps were highly expensive luxury items. They were favoured by "Club" cyclists—enthusiastic long-distance riders who trained at night or went on weekend tours across the unlit British countryside. Everyday town commuters typically stuck to cheaper, dimmer oil lamps. Because the flame was pressurized, it was highly windproof and wouldn't blow out while riding fast.