It is beer bottle from 1890-1910. They came with a porcelain stopper and wire bail to keep them airtight.Many regions and towns had locally brewed beers with there own bottles. Normally they are locally common and while neat finds usually carry minimal value. Local collectors may have the greatest interest. Amber(brown) ,like yours is a common color. Sometimes these beers come in cobalt blue or other rare colors that can dramatically affect value.As a past digger in the northeast I have dug hundreds of them. And they are always fun to find.
Yes the eagle is almost exactly like the old Anheuser eagle. I'm wondering if this was some brewery that started with a "U" (like United, etc.) that was an agent for Budweiser beer. I have local beers that say so and so bottling works, and then Pabst, or Schlitz beer, etc. I posted this on another forum but so far, nobody knows either.
But, what is that "U" ??? That's the question here.
Well Mike is unsure and is putting it out to all his resources.
"I am putting a confirmation
inquiry out, but I believe it to be an Union Brewing from
Ann Arbor."
It is possible it is from them. They did have an eagle on the front of some of their bottles. They were in business from 1904 - 1918. A good chance this is a rare bottle.
http://brucemobley.com/beerbottlelibrary/mi/annarbor/michigan.htm