Lot of 4 different, each 3.5x5.5" or slightly larger and from 1939-1941. First is Sunoco "Jack Frost Special" featuring Mickey in winter garb. Front flap opens to detail the "Winterized Services." Second item also for Sunoco is postcard reminding recipient to change to "Winter Oil." Depicts Mickey as a pilgrim shooting at a turkey. Third is for "RPM Motor Oil" with text reading "Oil Service To The Queen's Taste" and shows Mickey as service attendant greeting "Queen" Minnie. Final card issued by "Standard Stations Inc." is a reminder for a lube job and features Donald Duck with flowers and title "Ah-Forget-Me-Not." This card has light corner bend, o/w lot is Exc. Nice group, several are scarce.