https://www.google.co.uk/maps/@51.5055547,-0.1245604,3a,75y,272.75h,127.06t/data=!3m6!1e1!3m4!1se84Y09lh1EqiDD-3yjRIvw!2e0!7i13312!8i6656!6m1!1e1

a smudge on the lens?...no, something more than that...."he'll probably be in there"....

remember that 'smudge' in front of 'snail house'...more of a 'slug' than a 'snail'...taken to be a 'bullet/armaments' reference by Whitehall, 'with a laugh'..."yes a slug...that'll do"...