As I was making my way over to the CF to sell some stuff, I decided it was a good time to bring my leather purse to also check for anything interesting to buy.
While seated on a horse I shift + clicked (amber client) my purse into the 9th slot of my troll belt and moved to the CF.
After selling various things I decided it was time to put my well-earned coins into my leather purse, only to find out it had dissapeared (including its content).
I traced over all my steps from my home to the CF to check if I made a stupid mistake or anything, but I did not find any.
I didn't travel over water, so did not drop it in the water.
I did not drop it on the ground as no one at the CF would've been able to pick it up, nor did I find it on my way from my place to the CF (which is a pretty direct CR).
I did not accidently sell it at any of the shops, as none of the shops I visited had a buy offer for leather purses.
Now it can still be that I have overlooked something and made a stupid mistake after all, but I cannot think of any way.
Feel free to ask for any other necessary information, if need be.