The record
The Guy Armoured Car was a Woolwich Arsenal design built by Guy on its Quad-Ant chassis; Guy lacked the capacity to build it in numbers, so Rootes’ Karrier division designed the Humber from it on the KT 4 chassis, with welded hulls and turrets supplied by Guy, and built it at Commer’s Luton works — and the Karrier name was dropped to avoid confusion with the tracked Universal Carrier, leaving Humber’s. Marks I to III carried 15 mm and 7.92 mm Besa machine guns; about 2,000 Mk IVs took the American M5 or M6 37 mm gun instead. British, Canadian, Indian and Portuguese forces used them, in North Africa, Burma and afterwards at Goa.
Procedural review, 28 September 2026: Mk II represents the Mk I–III grouping, using the period IWM H17835 front and Haugh archival rear photographs. Fresh tall welded hull, integrated driver glacis, small two-man twin-MG turret, seven rear engine louvres, side bins, 112-inch shared-wheel chassis and two right-side smoke tubes. All 19 supplied originals and six additional period Mk II images inspected. Closed combat vision shutters are modelled opaque. Plain representative desert sand; no invented unit signs. Exposed spare omitted because absent in the selected standard period all-around views (field-lashed and museum fittings vary). Existing broad operator-country list is preserved but is not evidence that each country used this exact Mk II. Detailed inventory and uncertainties: research/model-notes/holderness-armoured-car.md.
