This blog about '50s comic strips has 8 single page models that were published during WWII. All in brilliant black and white, There's 3 WWII planes, a couple of boats and some artillery items. Perhaps for economy of page space, the planes only have the tops of the wings. If this feature originally appeared on newsprint I suspect these made for kind of flimsy models. Thank goodness for inkjets and card stock.
http://allthingsger.blogspot.com/2011/09/make-war-not-love-wednesday-advertising.html
http://allthingsger.blogspot.com/2011/09/make-war-not-love-wednesday-advertising.html