Thirty-five millimeter film came out way back in 1892, but I don't know when the handy little plastic containers were first used. I DO know that ever since I was a kid, outdoor magazines have advised them for use in storing small things that you didn't want to lose or get wet. When looking for something to put a tiny flash drive in the other day, I settled on this container and realized that it was the last one I had left. The camera that used it was given to the Salvation Army long ago, and I'd be surprised if they were even able to give it away. I think we may eventually rue the day that we let the technology of film developing die.