This will have Union identified flags returned from the War Department and tons of Confederate flag that were also identified.

CSA Flags, on page 108

Here is the link,

http://books.google.com/books?id=0UdHAQAAIAAJ&pg=RA4-PA105&dq=Confederate+War+Department+Union+flags+captured&hl=en&ei=nGuyToGkGeSU2AXSwdykBA&sa=X&oi=book_result&ct=result&resnum=6&sqi=2&ved=0CF0Q6AEwBQ#v=onepage&q=Confederate%20War%20Department%20Union%20flags%20captured&f=false

Hope that helps!

Shawn Prouty