Can't say for sure, but from the photos, it looks like the cover may be a Phili Depot made item. The web strap appears to be the thin variety that the depot used. There is a thread on this forum that has some good pics of the Phili Depot made covers. Also, the line(I believe it's called a selvage line???) in the material is present on a couple of my USMC first aid pouchs that are early/pre-WW2.
PS-Low and behold! Actually, now that I looked at the start of this thread, the first cover pictured in this thread is a Phili Depot cover.
Edited by Schnicklfritz, 17 May 2007 - 12:42 PM.