those numbers where just an example..this flag no longer exists but according to Madaus' book, The Battle Flags of the Confederate AOT, the 39th's dimensions are almost identical to a flag captured by the 122nd Illinois vols. at Nashville. Those dimensions of the captured flag are 42 X 51.5 with 6.5 blue cross with 1.25 white edge. The pole sleeve was doubled over for 1.75 edge.