Mark B. Ledenbach's vintage Halloween collectibles blog.

1930's Halloween tin litho slide whistle Hoarder's estate #179

When I was a new collector I saw these fairly regularly. Times sure have changed! I haven't seen one being offered for sale for quite some time. The RSIN for this now is 2, with a sustainable guide value of $150. Kirchhof made this nicely designed slider in the early 1930s. I can't think of similarly designed tin litho noisemakers, so if you don't have this yet in your collection, this item looks to be in collectible condition. 

06/27 Update: It is surprising that this didn't fetch more, at $108.05. As referenced above, they don't surface as much as they once did. Guide value is $150, so the buyer got a bargain.