Shawn
In the Oresentation of Flags of NY Regiments, July 4, 1865 to the Govenorit is noted that Gen. James C. Rogers(Brvt) of the 123d presented three flags.
One a National Garrason Flag, no concern here.
Their original National colors presented by the Ladies of Washington County upon departure in September 1862 and used till February, 1865
A national Flag,silk.
I am assuming that this is the replacement for the original one retired in Feb. '65
This would indicate that they may not have lost a flag
You might enjoy visiting the 123d web site at
28thga.org
Bob Farrell