Please Help ID this Button!

[TrashedTiger]

Hello,

I need help identifying the button shown here in the first link:

http://imageshack.us/a/img440/850/img2234432.jpg

Here are pics of the jacket itself:

http://imageshack.us/a/img207/8443/realcover.jpg

http://imageshack.us/a/img444/6526/img2686g.jpg

The jacket was made by A. Shuman Co. Boston and I believe they were in business from the late 1800s through the early 1900s. I am almost certain this jacket is Pre-WWI, but I cannot find any info on this button to help me track down the specifics. I know lots of you guys out there are PROS!!! Any information or help in identifying this button would be greatly appreciated. Thank you!

 

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[TheCannonballGuy]

The button is a Boston School Cadet button. See button #SU-43A in the Schools & Universities section of the button-book by Alphaeus H. Albert, "Record of American Uniform And Historical Buttons."

The Abraham Shuman Co. was listed in the 1899/1900 Boston City Directory as "clothiers." The firm advertized "Army & Navy uniforms" for sale in 1906 and somewhat later.

The presence of the Great Seal (of the United States) emblem indicates the coat is 1902 or later.