The seller states this very tall black cat tabletop decoration with a 3-D effect was made by Dennison. Dennison was darn particular about marking their wares and they were clever about it, sometimes incorporating it into the small filigree or line work present in a significant minority of their goods. This doesn't appear to be marked. When I first pulled up this listing, I thought for sure it was actually a Beistle item. However, there are a number of key differences: the recessed eyes/nose/mouth and the lack of any facial detailing to name two. I can't find any reference to this kind of 3-D tabletop decoration in any of my Dennison Bogie Books, Price List pamphlets, etc. so this is a mystery. I love the way this seller takes such great care to point out whatever imperfections exist in the items he is auctioning.
03/02 Update: The seller was gracious enough to contact me directly, alerting me to the fact that this cat was shown in Dennison's 1934 Halloween Parties booklet. I had forgotten about those pages. Seeing something in 3-D is sure a lot different than seeing it on a page. Dennison must have been irritated with their chief holiday competitor when Beistle essentially ripped off the design and began marketing their own line of these kinds of items. Even though Dennison was first, I like the detailing of the Beistle line better.
03/07 Update: This rare Dennison cat sold for $150.49.