How much is this worth?

It's from the monthly collection just 2 months ago, so 250 csc.
Actually it came from that costed 250CSC, so the price might vary around that. The collection itself is on SS for 16.9m (that's around 350CSC). I bought mine for 300 CSC on September. Collection items tend to sell harder than the Collection itself when the bag is cheaper than the item it originates. Not to mention that you can choose other items and that spreads the want for the satchel.