In 1937, Great Britain adopted a brand new style of webbing named the Pattern 37. With each set, a soldier would be issued two of these MKIII Ammo Pouches. The idea was that these pouches were to be "universal" and able to carry ammo for the Lee Enfield, Sten, and Bren all using the same pouch. This style of pouch was used from 1937 until the late 1950s by Commonwealth forces, with some using it even longer than that.
These are genuine WW2 ammo pouches. Most are stamped, but some have had the stamps worn off with use and time. Dates range from 1939-1945 which is really neat. WW2 surplus is almost dried up, so don't pass up this opportunity!
NOTE: These are all used, so please expect wear normal with military use. This includes but is not limited to fading, tears, stains, and other various minor imperfections. That being said, I try to inspect each pouch before they get sent to you, so you won't receive an un-usable pouch by any means.