Unknown insignia

[Naaficook]

Hello forum,
found this insignia on the net and couldn't trace the unit.
Does anyone knows this unit insignia?

<a href="http://s141.beta.photobucket.com/user/naaficook/media/unknowninsignia.jpg.html" target="_blank"><img src="http://i141.photobucket.com/albums/r63/naaficook/unknowninsignia.jpg" border="0" alt="unknown photo unknowninsignia.jpg"/></a>

[Marc Sherriff]

Northumbrian District (Northern Command) 1942

[Naaficook]

That was quick, thanks!