Thank you for answering my question. Do you have any idea of the value of the accordian? Thank you.

The decoration was done by the maker and has no relevance to the Civil War !! Many instruments were used by soldiers of that era but were brought from home and were not a part of the military issue !! These were also made and used later than 1865 which was the end of the Civil war !!
Many instruments were used during the 1860`s but few are tied to the Civil War !!
In other words ,, just because it was made or used during that era does not mean it is relevant to the Civil War !!
Some use the date as a selling tactic but does not make it worth money !! The value ,, no matter when made is in its condition !!

Thank you for getting back to me. I know that condition matters with antique accordians. What I question is the stars, which makes me wonder if this were used in the military? I don’t know. I can’t seem to find one like it. But thank you for trying to help me.

https://www.worthpoint.com/worthopedia/civil-war-era-squeeze-box-concertina

Certainly looks like it could be !! But condition is important and this one looks like its in poor condition !! You need to ask at some of the sites especially dedicated to militaria of the Civil War era !!

https://www.google.com/search?q=Extra+broad++steel+reeds%2C+made+in+germany+on+concertina&ie=utf-8&oe=utf-8&client=firefox-b

You might find some help here !!

Here is the first picture that didn’t load. Thank you