Well I broke down and bought the Sterling Plastic Apollo Space Capsule #506. Back in January of 2013 I posted this rocket that rides on the back of a Lionel train car with a capsule that only had SP stamped on the back. At the time the original #506 was out of my price range. I found one the other day with a good price so I jumped. The capsule is the most expensive of the small Sterling Plastic pencil sharpeners. Add one to your collection.