Commercial Street is road in central London that runs north to south from Shoreditch to Aldgate[?]. The road is on the London Inner Ring Road and as such forms part of the boundary of the London Congestion Charge zone. The road is also an informal boundary between the City of London, the financial centre of London, and the East End of London, which has conspicously less wealth.
... with its axis slipping around in the groove in a circular fashion. The groove inside the device, is a little wider than the axis, and the gyroscope's evasive action ...