Can someone please help me find a WWI propaganda poster concerning electricity conservation?

I’ve been sick and out of school for 4 days in a row and tomorrow I’m going to have to do an enormous boat-load of work that all but 1 of my teachers has neglected to surrender. Anyway, for one of the assignments that my Government teacher gave me, I’m supposed to paste an analysis of 8 WWI propaganda posters (each concerning a specific topic). So far, I’ve completed all but 2- one of a topic of my choice, and one with the topic,”Conserving electricity.” Unfortunately, the site provided on the worksheet seems to lack a poster on that subject. So, if you could either review that site and maybe find something I missed or find one elsewhere, that’d be like way awesome. Right now it’s 1:42 AM and I have to be in my seat at school by 7:45. So, considering that this must be completed by tomorrow, I’m in serious crunch time right about now. Oh! the following link is to a poster that I thought wouldn’t work for conserving electricity, but I could be wrong. Would this work?
http://www.rare-posters.com/361.html