(http://1.bp.blogspot.com/-b7g4LK-qrpA/Vl0EMvw3wtI/AAAAAAAAFgM/_97cT-_HL8Y/s1600/2015-12-01_minerva.jpg)
This is the Belgian Minerva armoured car (https://en.wikipedia.org/wiki/Minerva_Armored_Car). It was not the first, but it was one of the earliest armoured cars, and it was pretty primitive — pretty much just an open-topped steel box on a strengthened touring car chassis. The crew is quite exposed, especially when operating the machine gun.
The model is 1:100 (15mm) scale, from Peter Pig (http://peterpig.co.uk/). The number painted on the side is there just to break up the blankness a bit; I don't really know much about the markings used on the actual vehicles. Since it's destined for Imaginaristan "Back of Beyond" skirmish gaming and not a museum diorama, that really doesn't matter a great deal.