There is a letter F near the top nut of the lamp. Coleman CQ Quick-Lite Reg U. Patent Office Made in USA Coleman Lamp Co. Lamp looks to be in very good condition for its age.
Glass shade has double sided graphics of mallard ducks. This is an estate find.The family informed me this was the original shade that went with the lamp. It looks like it has the age that matches the base though. Along the bottom edge of the shade are small flea bites and one minor chip shown in images. No dents or dings in the base. Everything moves freely as it should with no rust. The lamp stands approx 20.5" high X 12" wide. The item "Antique 1920s Coleman CQ Quick-Lite Kerosene Table Lamp Original Glass Shade 20" is in sale since Tuesday, May 19, 2020. This item is in the category "Collectibles\Lamps, Lighting\Lamps". The seller is "northernnights715" and is located in Hayward, Wisconsin. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.