I recently bought an enormous private collection, much of it for resale, and this very hard-to-find Dennison black cat tally was one of the 25 or so pieces I kept for the collection. Prior to acquiring it, I had not seen one before, but had seen it referenced in one of the early 1930s Dennison publications. These were sold singly in stationary shops. If you are a Dennison completist, like me, you'll want this rare tally.
10/29 Update: This sold for a strong $34.39.