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- Brian
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I was walking by the River Thames in London recently and spotted this bolted to the embankment wall near Blackfriars Bridge.
It's clearly labelled "Leica" so it's obviously a piece of optical equipment, and a search for "GMP104" identifies it as a "Monitoring Mini Prism," but does anyone know what it's for?
It's clearly labelled "Leica" so it's obviously a piece of optical equipment, and a search for "GMP104" identifies it as a "Monitoring Mini Prism," but does anyone know what it's for?