Lot of 5 never-used oil change stickers from Shell Oil in mint condition! These date to the 1960s and are new old stock. They appear to be for small planes, the brand Aeroshell is referenced as is the number of engine hours. Each measures 4 3/8" long by 1 3/8" wide. Adhesive tabs are intact and stickers look to be still useable. Excellent, original, vivid Shell colors! Scarce oil/gas collectible!