etailer in State A decides to go into the catalog sales business in State B. Both countries are parties to the CISG. Retailer purchases a mailing list from Ace Credit Card Company. The list has the names and addresses of 500,000 persons owning Ace credit cards in State B, and Retailer uses this to prepare mailing labels. John Q. Public receives a catalog addressed to him personally from Retailer. The catalog describes various types of widgets and gives prices for each one. Has the retailer made an offer to sell the widgets? If John accepts, will there be a binding contract under the CISG?