Colour postcard showing The Town Hall (built 1735, extended 1744) and the Market Cross (erected c1768) seen on a market day from the south c1900. An electric tram is travelling down the east side of the Town Hall past the West End Art Tailoring Company (No.47 High Street) 
Picture Stockton Archive
A Pictorial History of Stockton-on-Tees
This one looks more like 1900. When did the trams go electric? Although the colours are artificial they look very realisitic