Some boxed Gibson seals have recently sold for significantly more than SGV. Owls have never commanded the highest prices in seemingly any of the vintage Halloween genres, and this was no exception. The hammer came down almost precisely at the SGV. Although complete Gibson boxed sets are significantly harder to find than many of the Dennison boxed sets, the latter typically command high dollars. Gibson's production was more limited as was their distribution. Not helping the secondary market for Gibson's boxed sets is that their art was, by and large, pedestrian and uninspired.
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Mark B. Ledenbach's vintage Halloween collectibles blog.