Last one to the mustard factory is a ninny!
Should Meaux have fields of mustard flowers I looked for (texture artist info maybe) and found a nice war story

In a village named Penchard there was some very sharp fighting, and some of our artillery were posted hereabouts. Presently a German aeroplane came overhead circling round in reconnaissance. But it was out for more than that. Suddenly it began to drop bombs, and whether by design or otherwise — they have no manners, these fellows — they exploded in the middle of a field hospital. One of my friends, a young doctor, was wounded in the left arm by a bullet from one of these bombs, though I don't know what other casualties there were. But the inevitable happened. Shortly after the disappearance of the aeroplane the German shells searched the position, and found it with unpleasant accuracy. It is always the same. The German aeroplanes are really wonderful in the way they search out the positions of our guns. We always know that within half an hour of an observation by aeroplane the shells will begin to fall above the gunners unless they have altered their position. It was so in this fighting round Meaux yesterday.
http://www.greatwardifferent.com/Great_War/Story_Zouave/Story_Zouave_01.htmHmm two-seater, observer in the back, click on a spot below correctly: artillery barrage opens up on it "the way they search out the positions of our guns" challenge
Nice work soda!
Ming