If you go back to Listings Nos FLA 6344 and 6348 you will find two other Flashes as worn in Best Dress by this Unit.

The First United States Cavalry Division are particularly remembered for their fine performance in Vietnam. They were one of the very first units to arrive in there back in 1965 and participated in more actions than any other formation.
"Quartermaster's Comment":-  Please go back and have another look at the two previous Flashes as offered. This one......as with them......is some 13 cms tall.