Restoring Worlds Smallest Lighter - Vintage Lighter Restoration & Repair

This mini lighter in missing some parts and it is in general very dirty and in need of full restoration. The lighter is very small only an inch or 2.5 cm tall. It’s the smallest lighter I’ve ever seen. It used to be nickel plated but the plating has worn off. The plating has to be restored. I also need to make a new screw for the flint because it would be very hard to find one. I took off all the easy to remove parts and washed the lighter. Then it was put to rust remover. Rust removers basically work similarly to vinegar or other acids so they also work on brass. If you leave parts in there for too long they might dissolve so I usually do something else with brass. This time I thought the cap mechanism might unjam after treating it with rust remover. But it broke. Probably the spring was already so damaged the little acid broke it. Remember that I almost always put my lighter spring in rust remover and this is the first time something has broken. After the rust remover I washed the parts with water a