How Would You Reconstruct This 4th Century Ration-Bag?

[Mithras]

Mithraic scholars Vermaseren and Van Essen described the appearance of a temple initiate depicted on poorly preserved wall paintings discovered at the church of Santa Prisca, in Rome. The only published photograph attests to a painting in a terrible condition, and the Italian authorities will not issue visitors' permits to view the temple. The two scholars, however, described the soldier-initiate in detail, wearing a long-sleeved bright brown tunic with two rows of purple piping at the wrists, plus a red-brown cloak. On his left shoulder is a military bag (sarcina) "which he holds at its round buttoned-up end with his left hand." The 'round end' of this military pack fits the slight illustration we have from the Ostia mosaic.

Here is the Ostia picture of the 'soldier' rank, with helmet, spear and marching pack: http://img.photobucket.com/albums/v299/ ... eum_06.jpg

Not much to go on, I know, but in the 4thC - you use what evidence you have ...