Two good points, Walt. As to the insignia of rank, we could read this as meaning that no "sig corps sgt" chevrons (w/ crossed flags) were standard issuance--that the "em" badge, issued separately, was to be incorporated into the chevron as best one could devise. I'd hesitate to think that. Certainly not as neat (esp. given "soldier sewing"). Could well have been an early practice until the new reg was reflected in procurement. But, barring further documentation (text or photo), a firme(er) conclusion will depend upon material research.|
Similarly, the matter of corporals late war is worth further research--but again, a good point I hadn't thought of before. Didn't the SigCorps introduce the "Privates of First Class" or "First Class Private," later to become "PFC" generally in the army? Perhaps they had absorbed (thru promotion) or found no further use for corporals.