J Smith & Sons Clock - Goswell Road Island, London, UK - Town Clocks on Waymarking.com

The clock was erected by J Smith and Sons in 1906. They were local traders and the clock still carries their advert that reads:
"J. Smith & Sons (Clerkenwell) Ltd. Established 1780.

42-54 St Johns Square London, E.C.1. Tel. CLErkenwell 1277.

Metals and engineering.

Aluminium & / light alloys / Brass / Copper / Gun Metal / Phos: bronze / Nickel Silver / in rod, sheet / tube, Section / circles / nuts : Screws / Silver Steel etc."

The clock has recently been refurbished and has a green case with the lettering, on all four sides, being in gold.

There is a clock face on each of the four sides.

This local article gives a bit more detail and concerns about the re-furbished clock:
"Former Islington Mayor Joe Trotter is concerned that a recently-restored 100-year-old clock in Angel may not be vandal-proof.
Mr Trotter has praised Transport for London (TfL) for refurbishing the Smith clock at the top of City Road.
He said this week: “TfL has done a marvellous job with the clock and it even shows the right time. But I’m worried that a two-foot concrete plinth, which gave the clock height and kept it out of range of graffiti artists, has not been replaced.”
The clock at the junction with Goswell Road is still fenced off while workmen complete the restoration of the pavement area. It had stopped this week.
Mark Aston, history manager at Islington Local History Centre in Finsbury, said that a clock occupied a site opposite the former Angel Tavern, now the Co-operative Bank, up to 1872. Then an agreement was made between Islington and Clerkenwell Vestries (former councils) and John Smith and Sons, clock and watchmakers, for it to be moved to its present site, where the clock went up in 1906.
Smith, established in 1780, had its works – The Clerkenwell Steam Clock Works – at St John’s Square, Clerkenwell, an area well known as a centre of clock and watchmaking.
Mr Aston said: “The clock was originally wound daily by hand, but some time later an electrical winding mechanism was installed, with Smith footing the bill.”
A TfL spokesman said the clock had been refurbished and given a new granite plinth as part of improvements to the Goswell Triangle. “Gran­ite paving matching the clock plinth will be laid around the clock during the next couple of weeks,” he added.
“We are aware the clock has stopped working and are currently in the process of having this repaired.”"

Source Camden New Journal.