Up for sale is a sealed 25-sheet box of Kodak black & white infrared safety film which has an expiration date of 1959.  Due to the film's age, there are no performance guarantees and obviously once it has been unsealed it cannot be returned.  I do not know how the film has been stored these past 65 years, but it is unlikely that it was kept in a controlled environment like a fridge or freezer.  Please be sure to fully enlarge the provided photos, and feel free to contact me with any questions you may have.