I was adding a box to my collection and found the 25rd box pictured below in my storage box marked East European. The only markings are “41111” on the bottom and “4135” on a flap which covers the cartridges inside the top flap.
I use to use a rubber glue to attach a small tag with a reference number to the box, but that has fallen off so i have no idea where this box is from. The construction is significantly different from either the Yugoslav boxes from the 40s & 50s and from trhe South Africian boxes in my collection.
Any information is appreciated.