I have just come across this article on Russian ration packs. Included in the sundries was a pouch of moist-wipes, a small pack of storm matches and a pack of fuel blocks.
I could not make out what the item packaged with the fuel blocks was so searched for other images. I think it is a can-opener, which would be logical given many of the ration pack items are canned. Discovered that a stove is also included in the pack of fuel blocks. A simple piece of metal that can be folded into a raised platform with pot support. Probably not that efficient, but ingenious!