Unfortunately there were no markings on the artifact.

---- Richard Wright <[log in to unmask]> wrote: 
> The 4 bolts indicate to me that it bolts onto a vehicle frame . The flange suggests a pipe or hose attaches and the recessed area in the top? suggests a place for a gasket. Is there a number or name anywhere? ….
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> Oops - Bob got it. Similar ones can be found with a Googelsearch on “vehicle air-flow-control damper.”
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> Richard Wright
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> > On Jan 23, 2017, at 11:48 AM, Sarah Heffner <[log in to unmask]> wrote:
> > 
> > Thanks!
> > ---- Lyle Browning <[log in to unmask]> wrote: 
> >> It has more the look of a form of stove damper mechanism.
> >> 
> >> Lyle Browning, RPA
> >>> On Jan 23, 2017, at 2:17 PM, Sarah Heffner <[log in to unmask]> wrote:
> >>> 
> >>> Does anyone know what this artifact is? It was found in association with a treehouse that was likely used in the mid-1960s. I thought this might be a lantern but I have not been able to find any images of lanterns that look like this. Is it some sort of food processor? Any help with IDing is appreciated! 
> >>> 
> >>> The artifact is 5" wide at the base, 6" wide at the top, and 6" tall. 
> >>> 
> >>> Here is a link to the Dropbox folder with the pictures: https://www.dropbox.com/sh/wt25uopzl2qchp8/AADT3ge6W9AHXYah0qxZNSYea?dl=0
> >>> 
> >>> Thanks!