I bought it at an estate sale of a professional photographer- it was in the refrigerator with other old films I purchased.  I also found this roll of Kodachrome that I am including - it might have been exposed.  No way of telling - it was just in the third cannister with the other two so I thought I would include it!  

Good luck - no returns on this item as I have no idea of the viability of the product. 

list note - L4A