SHAFTSBURY AVE.


This box was spotted by Chrysoula on the 3rd of Oct 2016 at 1.30pm:

I was walking home when I heard the characteristic sound of a telecommunication box. I first heard it and then saw it, it was pretty loud. It was probably the first time that I walked through that street.


Producing a continuous sound composed of:
60Hz
215Hz
408Hz
563Hz
872Hz
1716Hz
1965Hz
2224Hz
4389Hz

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