I have another weird thing, once again it has characterisitcs of WWII German manufacture (dark leather and the buckles have "X", just like some German bayonet hangers). This reminds me of a canteen strap but it isnt. It came on a WWII US dispatch case, so maybe it was a souvineur? Help please!
Can you please show a picture of the hangers? This does look like its German. I used to have an Army Dagger w/ white handle-and the dagger hangers that came with it. I don't actively collect edged weapons and accessories and traded these items off long ago. I do still have a few Bayonets including a K-98 with matching serial Nr on both blade and scabbard-with about 99% of it's bluing intact. The hangers don't look like they are made od Silver Nickle and are also not "pebbeled". These look like stainless steel. This might not be a dagger hanger but one for a Sword. Just a wild guess?
the clips are German and could come from a canteen and adapted to a longer strap. Your clip seems to be similar to the one on the right. ps: similar clips were used by the swedes.
The clips do look to be the same. I never thought to loo at Canteens for clips but these shown on the ones you posted-sure indeed do look like the same used on Dagger hangers.