Display By Territorials Of Army Equipment.. TA Adopted by City of Westminster - On Horse Guards Parade. Sgt. James Grindlay of Greenwich helps four-year-old Allen Williams of Edmonton - as the latter tries the elevation of a 40 mm Bofors gun on the Horse Guards Parade this morning. A display of territorial army equipment was held on the Horse Guards Parade this morning, a display which culminated in the adoption by the City of Westminster of the TA units in the city area. June 15, 1951. ;Dis