Valve indicators
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Submitted by philk on Sun, 2020-08-16 15:08
I seem to recall a discussion several years ago about the house shaped marking painted onto some buildings' walls. However, I can't find the discussion now, so here is a new one. Apple Daily has the answers: https://hk.appledaily.com/us/20200816/2LVLXX2VCFB6TEXRWYSYI2KLKI/
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