Portsmouth Corporation Tramways was officially renamed the ‘City of Portsmouth Passenger Transport Department’ on 14th July 1936, barely 4 months before the last tram ran. (from http://www.tramwaybadgesandbuttons.com/page148/page151/page220/page220.html)
Nne of the 4 hole copper button reads: Swears & Wells 192 Regent St. from research: Swears & Wells was a department store at 192 Regent Street in London’s West End, established in 1816 by Frederick Swears and Thomas William Wells. The company achieved high-standing as a leather and fur retailer and maker of children’s clothing. The store continued until at least the mid-1970s. These are photos of the Regent St store and another Art Deco shop front in the Spitalfields area.