In 2017 I visited the Southern California Railway Museum and took a short clip of a working Wig Wag - a form of railway-road crossing protection, similar to the flashing lights with or without gates that have become common throughout North America. And many years before that, I picked four operating Wig Wag models at an O scale railway event in the Chicago area. I recently unpacked one of the O scale models, that I'd mounted in a Mason Jar so I could enjoy the wonderful mechanism that animates these pieces - and decided I needed to share a video. The models were built to order by Charles Morrill. I don't know if he still offers this service.
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