Based on Musical Box and built by Cambridge-based Landships CIC (Community Interest Company - a non-profit, govt-backed organisation. See here), the same mob that built the slightly under-scale rhomboid created as a prop for the 2006 film The Magic Flute.
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"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.