What is your oldest light? Looking for examples of old lights still capable of use, or better yet, still in use.
My oldest is a blue enamel-steel, Justrite 4D incandescent headlamp that has seen better days. Dates from circa 1970, so it's about 36 years old. This headlamp still works and I still use it occasionally. It worked perfectly until just recently, when the switch began to become intermittent.
Unfortunately, I don't have a digital camera so I can't post a picture of it. The headlamp part holds only bulb, socket, reflector, and switch, so it's quite light. The 4 D cells - the heavy part of the rig - ride in a steel battery pack with a belt clip. Throws a pretty good spot when focused. When defocused it puts out a useful flood of bright light, but with rings and other artifacts.
Over the years this headlamp has been through many a cave, and on many hiking, camping and canoeing trips. It's banged up: the finish is scraped off in places and there are more than a few dents and a little rust. It's somewhat of a pain to adjust the focus bezel, because the threads are dented out of shape.
I've been thinking about replacing the switch and dropping in a LED conversion, but I have to wonder if it's really worth the trouble. Maybe I should just give this light an honorable retirement: "Farewell, thou good and faithful servant."
Anyone else have an "old faithful" they would hate to get rid of?