The Bedford OYD Armadillo was a Bedford OY fitted for airfield defence with Lewis guns and an ex-aircraft COW 37 mm gun.
This vehicle was used by the RAF for airfield defence and later the Home Guard.
As with many of my 15mm metal vehicles I don’t recall who the manufacturer was. After a bit of internet research I believe it is an old SDD miniature. Not convinced totally, but other miniatures in the box it was in, carry SDD codes.
After finding the side plates, the next stage will be a white undercoat.