The seller claims that this tin noisemaker is an early version, citing his research that informed him later versions had round clappers and an orange rather than a green back. I am not sure where this seller gets this erroneous information. It may very well be that the seller is merely hyping an otherwise perfectly fine, although quite common, item. In any event, the seller, like so many sellers on Ebay these days, is fully valuing the offered item at the minimum "auction" price.
Mark B. Ledenbach's vintage Halloween collectibles blog.