My copy of the "Catalogue of the Ordnance Museum, United States Military Academy" dated 1929 lists many unidentified National and Regimental Colors. Sometimes there is some information on the flag, susch as size, number of stars etc but usually just listed as unindentified.

One that I did notice, discribed as blue silk trimmed with yellow fringe, is noted as being captured by T Lovin, Sgt Co B, 3rd Confederate Regt, Dec 31st 1862 at Mursfreesboro, Tenn.

If it is of any interest I can scan the flag pages and send them to you.

Regards

Alan Thrower
Hailsham
England