The BNP seems to have a remarkable facility for shooting itself in the foot. First of all, they don't appear to know which counties Marshfield and Haxey are in. Now, the BBC news tells us that the photograph of so called "British workers" shown in their campaign leaflet was in fact posed by American male models.

What's more, Re., Emm B's noticing that the Spitfire in their leaflet actually belonged to the Polish Air Force Squadron, I've just found the following on Wikipeadia.

"As part of an advertising campaign designed to highlight their concerns about the numbers of foreign workers (including Polish migrants) in the United Kingdom, the British National Party used the distinctly British icon of a Spitfire to illustrate their idea of a Battle for Britain. Ironically, the Spitfire shown in their advertising was RF-D from 303 (Polish) Squadron."