With respect to all but the comments re: being machine sewn are a bit funny to me - in the world of professional leather crafters all machine sewing is compared to hand sewing when noting the quality of the stitch - GOOD hand sewing is the Gold Standard not the other way around and GOOD hand sewing is of overall better quality and looks. FYI There is recorded/extant hand sewing as fine as 60 stitches per inch ( that's right I said sixty and don't ask me how exactly they did it, amazing but true) and most high end period and modern Euro made hand sewn leather goods usually feature sewing in the 12-20 SPI range with fine thread (most crafters in the USA commonly use 5-7 SPI with thicker thread)
I believe this is bag is hand sewn based - on the next to last pic there appears to be backstitching on the upper/centerpiece which indicates hand sewing, but one way to check to be positive is in the same pic look at the piece on the left that appears to be partly opened up along the stitch line - if the threads meet in the middle and are hooked together via a loop of one thread through the other than it's machine sewn. If the two threads go back and forth through both top and bottom then it's hand sewn using the typical harness stitch - if you can't tell for sure but good take a closeup up of tha area.....
While viable sewing machines were first used commercially by the 1850's, dedicated leather sewing machines were not developed until the late 1870's. So if machine sewn it is most likely late 1800's early 1900's. If hand sewn it could be earlier, but like others have noted, IMO this is a late 19th Century product and not an older or much later product - the wear and tear on the leather is the real McCoy, natural aging not forced.
As for origin - I actually had a similar bag in my shop a few years ago and after much searching found that it was German product and it was not a hunting bag, but CRS has set in and I don't remember exactly what it was used for (A type of dispatch bag maybe?).
Therefore I agree with Rod L - this is most likely a late 19th Century professionally made German product, the fur is also most likely badger as noted (I've got two skins sitting in my shop that are a VERY close match), the rolled leather button is a typical German item, the only real "question" in my mind is the double D buckle - normally an 18th Century item but one that could have easily been re-purposed.
FWIW - the bag could easily be refurbished by a good pro with experience in such - the leather looks to be in good enough condition that it could be "stabilized" to prevent further damage or it could be replaced if so desired although IMO I'd stabilize than put it on display rather than using it.
