Butler Machine Tool Co Ltd v Ex-Cell-O Corp (England) Ltd
…on all material points — even though there may be differences between the forms and conditions printed on the back of them. As Lord Cairns said in Brogden v. Metropolitan Railway Co. (1877) 2 App.Cas. 666, 672: "… there may be a consensus between the parties far short of a complete mode of expressing it, and that consensus may be…