From the Confederate Military sashes were worn by all sergeant ranks and officers. The colour indicated the corps or standing from the wearer. One example is: yellow for cavalry, burgundy for infantry, black for chaplains, pink for sergeants, eco-friendly or blue for medics, and grey or cream for standard officers. https://sashwindows46432.activablog.com/34926003/the-greatest-guide-to-sash-window-draught-proofing