I agree that would be most likely the case, but i secretly hope there's a spear over the left shoulder under the dirt, as the bust looks more like a half-length bust and there's something that looks like a tip of a spear behind his head (might more likely be where the laurel is tied, but just a closer inspection might reveal it).I did not pay attention to this detail. Why not. But, there is always a "but", this type is recorded in RMBT (#161), but only known for 1st officina and expected for the 2nd officina. What is interesting, is that, there is no aegis on cuirass and the location of left hand is higher to hold the spear.