INDICATOR #2: SQUARED OFF FLAPS

From my research, it appears ALL canvas pouches, whether they are original or replicas, have squared off flaps while ALL leather pouches have angled flaps or rounded flaps. Comparing the ANH screen captures below to the pouches above it is clear that the screen used pouches have the squared off flaps like the canvas pouches.

LEATHER POUCH
(note flaps are cut at angles)
(click images to enlarge)
CANVAS POUCH
(note flaps are squared off)
(click image to enlarge)